Raheleh Saryazdi; Joanne Nuque; Craig G. Chambers
Pragmatic inferences in aging and human-robot communication Journal Article
In: Cognition, vol. 223, pp. 1–12, 2022.
Despite the increase in research on older adults' communicative behavior, little work has explored patterns of age-related change in pragmatic inferencing and how these patterns are adapted depending on the situation-specific context. In two eye-tracking experiments, participants followed instructions like “Click on the greenhouse”, which were either played over speakers or spoken live by a co-present robot partner. Implicit inferential processes were measured by exploring the extent to which listeners temporarily (mis)understood the unfolding noun to be a modified phrase referring to a competitor object in the display (green hat). This competitor was accompanied by either another member of the same category or an unrelated item (tan hat vs. dice). Experiment 1 (no robot) showed clear evidence of contrastive inferencing in both younger and older adults (more looks to the green hat when the tan hat was also present). Experiment 2 explored the ability to suppress these contrastive inferences when the robot talker was known to lack any color perception, making descriptions like “green hat” implausible. Younger but not older listeners were able to suppress contrastive inferences in this context, suggesting older adults could not keep the relevant limitations in mind and/or were more likely to spontaneously ascribe human attributes to the robot. Together, the findings enhance our understanding of pragmatic inferencing in aging.
Mustafa Shirzad; Benjamin Tari; Connor Dalton; James Van Riesen; Michael J. Marsala; Matthew Heath
Passive exercise increases cerebral blood flow velocity and supports a postexercise executive function benefit Journal Article
In: Psychophysiology, vol. 59, no. 12, pp. 1–15, 2022.
Executive function entails high-level cognitive control supporting activities of daily living. Literature has shown that a single-bout of exercise involving volitional muscle activation (i.e., active exercise) improves executive function and that an increase in cerebral blood flow (CBF) may contribute to this benefit. It is, however, unknown whether non-volitional exercise (i.e., passive exercise) wherein an individual's limbs are moved via an external force elicits a similar executive function benefit. This is a salient question given that proprioceptive and feedforward drive from passive exercise increases CBF independent of the metabolic demands of active exercise. Here, in a procedural validation participants (n = 2) used a cycle ergometer to complete separate 20-min active and passive (via mechanically driven flywheel) exercise conditions and a non-exercise control condition. Electromyography showed that passive exercise did not increase agonist muscle activation or increase ventilation or gas exchange variables (i.e., V̇O2 and V̇CO2). In a main experiment participants (n = 28) completed the same exercise and control conditions and transcranial Doppler ultrasound showed that active and passive exercise (but not the control condition) increased CBF through the middle cerebral artery (ps <.001); albeit the magnitude was less during passive exercise. Notably, antisaccade reaction times prior to and immediately after each condition showed that active (p <.001) and passive (p =.034) exercise improved an oculomotor-based measure of executive function, whereas no benefit was observed in the control condition (p =.85). Accordingly, results evince that passive exercise ‘boosts' an oculomotor-based measure of executive function and supports convergent evidence that increased CBF mediates this benefit.
Diksha Shukla; Matthew Heath
A single bout of exercise provides a persistent benefit to cognitive flexibility Journal Article
In: Research Quarterly for Exercise and Sport, vol. 93, no. 3, pp. 516–527, 2022.
Purpose: A single bout of exercise enhances activity within the cortical networks that support executive function. It is, however, unclear whether exercise improves each core component of executive function and for how long a putative benefit might persist. Method: In Experiment 1, participants completed 20-min of aerobic exercise (via cycle ergometer) and cognitive flexibility—a core component of executive function—was examined pre-exercise, and at immediate, 30- and 60-min post-exercise assessments. Experiment 2 entailed a non-exercise control (i.e., participants sat on the ergometer without exercising) involving the same timeline of cognitive flexibility assessment. Cognitive flexibility was measured via stimulus-driven (SD) and minimally delayed (MD) saccades arranged in an AABB paradigm. SD and MD saccades require a response at target onset and after target offset, respectively, with the latter requiring executive control. Work has shown that reaction times for a SD saccade preceded by a MD saccade are longer than when a SD saccade is preceded by its same task-type, whereas the converse switch does not influence performance (i.e., the unidirectional switch-cost). Results: Experiment 1 showed a unidirectional switch-cost at each assessment; however, the switch-cost magnitude was decreased at immediate and 30-min assessments compared to the pre- and 60-min assessments. In contrast, Experiment 2 did not elicit a change in switch-cost magnitude across the different assessments. Discussion/Conclusion: Thus, a single-bout of exercise benefitted the cognitive flexibility component of executive function in the immediate and 30-min post-exercise assessments.
Carlos Sillero‐Rejon; Osama Mahmoud; Ricardo M. Tamayo; Alvaro Arturo Clavijo‐Alvarez; Sally Adams; Olivia M. Maynard
Standardised packs and larger health warnings: Visual attention and perceptions among Colombian smokers and non-smokers Journal Article
In: Addiction, vol. 117, pp. 1737–1747, 2022.
Aims: To measure how cigarette packaging (standardised packaging and branded packag- ing) and health warning size affect visual attention and pack preferences among Colombian smokers and non-smokers. Desig n: To explore visual attention, we used an eye-tracking experiment where non- smokers, weekly smokers and daily smokers were shown cigarette packs varying in warning size (30%-pictorial on top of the text, 30%-pictorial and text side-by-side, 50%, 70%) and packaging (standardised packaging, branded packaging). We used a discrete choice experiment (DCE) to examine the impact of warning size, packaging and brand name on preferences to try, taste perceptions and perceptions of harm. Setting: Eye-tracking laboratory, Universidad Nacional de Colombia, Bogotá, Colombia. Participants: Participants (n = 175) were 18 to 40 years old. Measurements: For the eye-tracking experiment, our primary outcome measure was the number of fixations toward the health warning compared with the branding. For the DCE, outcome measures were preferences to try, taste perceptions and harm perceptions. Findings: We observed greater visual attention to warning labels on standardised versus branded packages (F[3,167] = 22.87, P < 0.001) and when warnings were larger (F[9,161] = 147.17, P < 0.001); as warning size increased, the difference in visual attention to warnings between standardised and branded packaging decreased (F[9,161] = 4.44, P < 0.001). Non-smokers visually attended toward the warnings more than smokers, but as warning size increased these differences decreased (F[6,334] = 2.92
A. J. Walters; A. Lithopoulos; E. M. Tennant; S. Weissman; A. E. Latimer-Cheung
Exploring attention to the Canadian 24-Hour Movement Guidelines for Children and Youth using eye-tracking: A randomized control trial Journal Article
In: Public Health Nursing, vol. 39, pp. 982–992, 2022.
Background: The Canadian 24-Hour Movement Guidelines for Children and Youth (“Guidelines”) not only pioneered the notion of an integrated movement continuum from sleep to vigorous-intensity physical activity but also introduced a new branded Guideline visual identity. Objectives: This study evaluated youths' (N = 46) attention to and thoughts about the Guidelines and the brand. Design: A cross-sectional between-participants randomized intervention design was used. Sample: Canadian youth between 10 and 17 years of age comprised the study sample. Interventions: Participants were randomly assigned to view either branded Guidelines (n = 26) or unbranded Guidelines (n = 20). Youths' eye-movements (e.g., dwell time, fixation count) were recorded during Guideline viewing. Participants completed a follow-up survey assessing brand perceptions and Guideline cognitions. Results: The branded Guidelines neither drew greater overall attention nor led to more positive brand perceptions or Guideline cognitions compared to the unbranded Guidelines. Conclusions: Exploratory analyses provide valuable, yet preliminary insight into how branding and Guideline content may shape how Guidelines are perceived and acted upon. These findings inform an agenda for future health education resources.
Andi Wang; Ana Pellicer-Sánchez
Incidental vocabulary learning from bilingual subtitled viewing: An eye-tracking study Journal Article
In: Language Learning, vol. 72, no. 3, pp. 765–805, 2022.
This study examined the effectiveness of bilingual subtitles relative to captions, subtitles, and no subtitles for incidental vocabulary learning. Learners' processing of novel words in the subtitles and its relationship to learning gains were also explored. While their eye movements were recorded, 112 intermediate to advanced Chinese learners of English watched a documentary in one of 4 conditions: bilingual subtitles, captions, L1 subtitles, and no subtitles. Vocabulary pretests and posttests assessed the participants' knowledge of the target vocabulary for form recognition, meaning recall, and meaning recognition. Results suggested an advantage for bilingual subtitles over captions for meaning recognition and over L1 subtitles for meaning recall. Bilingual subtitles were less effective than captions for form recognition. Participants in the bilingual subtitles group spent more time reading the Chinese translations of the target items than the English target words. The amount of attention to the English target words (but not to the translations) predicted learning gains.
Jie Wang; Jiaming Shi; Xin Wen; Liang Xu; Ke Zhao; Fuyang Tao; Wenbiao Zhao; Xiuying Qian
The effect of signal icon and persuasion strategy on warning design in online fraud Journal Article
In: Computers and Security, vol. 121, pp. 1–14, 2022.
The rapid increase in the use of mobile technology and online communication has facilitated more opportunities for social interactions as well as for online fraud. Warnings are one of the last lines of defense in transaction security. Many warnings used in anti-fraud processes are often ineffective due to habituation and the trial-and-error method used in their design. Following psychological theories of persuasion and warning design principles, in this paper, we design fourteen warnings and examine their effectiveness in an eye-tracker experiment (Study 1) and in an online A/B test on the Alipay platform (Study 2). Based on the communication-human information processing (C-HIP) model, Study 1 found that pictorial signal icons and persuasion strategies significantly improved the effectiveness of warnings. Specifically, pictorial signal icons attracted users' attention better than the conventional signal icons, and warnings with authority, social influence, diversion, questioning, and multiple strategies performed better than those without a persuasion strategy. Study 2 showed that our warnings performed better than the original Alipay warnings. The overall case rate was reduced by 33.2%, avoiding at least 30 million yuan in economic losses. Our work contributes to the field of security warning design with both theoretical and practical value and provides an important reference for future research.
Colleen B. Ward; Jennifer E. Mack
The effect of an aphasia ID card on the processing of language produced by a speaker with nonfluent aphasia Journal Article
In: Journal of Communication Disorders, vol. 100, pp. 1–14, 2022.
Introduction: We tested whether aphasia self-disclosure via an aphasia ID card impacts (1) how non-aphasic listeners initially process language produced by a speaker with aphasia and (2) learning of the speaker's error patterns over time. Methods: In this eye-tracking experiment, 27 young adults followed instructions recorded by a speaker with nonfluent aphasia while viewing a target picture and a distractor. The Card group (n = 14) was shown a simulated aphasia ID card for the speaker and the No Card group (n = 13) was not. The task was divided into Pre-Observation and Post-Observation blocks. Between blocks, participants observed the speaker making semantic paraphasias. Eye-tracking analyses compared the time course of target advantage (reflecting competition from the distractor picture) and workspace advantage (reflecting attention to task) between groups and blocks. Results: Pre-Observation, the Card group had a higher target advantage than the No Card group in the post-response window (i.e., after participants had responded), indicating sustained attention to the speaker's language. Across blocks, there was evidence that the Card group (but not the No Card group) learned that the speaker makes semantic paraphasias. Conclusions: Aphasia ID cards impacted listeners' processing of language produced by a speaker with nonfluent aphasia. Increased patience and attentiveness may underlie both the Card group's sustained attention to the speaker as well as learning of the speaker's error patterns. Further research should address whether these changes impact communication success between PWA and new conversation partners.
Taylor D. Webb; Matthew G. Wilson; Henrik Odéen; Jan Kubanek
Remus: System for remote deep brain interventions Journal Article
In: iScience, vol. 25, no. 11, pp. 1–13, 2022.
Transcranial-focused ultrasound brings personalized medicine to the human brain. Ultrasound can modulate neural activity or release drugs in specific neural circuits but this personalized approach requires a system that delivers ultrasound into specified targets flexibly and on command. We developed a remote ultrasound system (Remus) that programmatically targets deep brain regions with high spatiotemporal precision and in a multi-focal manner. We validated these functions by modulating two deep brain nuclei—the left and right lateral geniculate nucleus—in a task-performing nonhuman primate. This flexible system will enable researchers and clinicians to diagnose and treat specific deep brain circuits in a noninvasive yet targeted manner, thus embodying the promise of personalized treatments of brain disorders.
Matthew B. Winn; Katherine H. Teece
Effortful listening despite correct responses: The cost of mental repair in sentence recognition by listeners with cochlear implants Journal Article
In: Journal of Speech, Language, and Hearing Research, vol. 65, pp. 3966–3980, 2022.
Purpose: Speech recognition percent correct scores fail to capture the effort of mentally repairing the perception of speech that was initially misheard. This study measured the effort of listening to stimuli specifically designed to elicit mental repair in adults who use cochlear implants (CIs). Method: CI listeners heard and repeated sentences in which specific words were distorted or masked by noise but recovered based on later context: a signature of mental repair. Changes in pupil dilation were tracked as an index of effort and time-locked with specific landmarks during perception. Results: Effort significantly increases when a listener needs to repair a misperceived word, even if the verbal response is ultimately correct. Mental repair of words in a sentence was accompanied by greater prevalence of errors elsewhere in the same sentence, suggesting that effort spreads to consume resources across time. The cost of mental repair in CI listeners was essentially the same as that observed in listeners with normal hearing in previous work. Conclusions: Listening effort as tracked by pupil dilation is better explained by the mental repair and reconstruction of words rather than the appearance of correct or incorrect perception. Linguistic coherence drives effort more heavily than the mere presence of mistakes, highlighting the importance of testing materials that do not constrain coherence by design.
Anna M. Wright; Jorge A. Salas; Kelly E. Carter; Daniel T. Levin
Eye Movement Modeling Examples guide viewer eye movements but do not improve learning Journal Article
In: Learning and Instruction, vol. 79, pp. 1–9, 2022.
Recent research has tested whether Eye Movement Modeling Examples (EMMEs) can effectively cue attention and improve learning. However, the effects of EMMEs are variable, and the degree to which viewers follow these cues remains unclear. In the current paper, we compared screen-captured instructional videos that included an EMME in the form of a transparent circular overlay depicting the instructor's gaze location with identical videos that lacked this cue. We observed that EMMEs drove viewer saccades to cued locations and resulted in shorter distances between viewer gaze and the EMME, but learning performance and video preference were unaffected by the presence of an EMME. We argue that EMMEs can effectively guide attention, but the range of circumstances under which they improve learning may be limited.
Zedong Xie; Meng Zhang; Zunping Ma
The impact of mental simulation on subsequent tourist experience–dual evidence from eye tracking and self-reported measurement Journal Article
In: Current Issues in Tourism, pp. 1–16, 2022.
Tourism research has always sought to find ways to improve tourists' experience evaluation and create added value for them. However, the academic community has focused on the on-site and post-travel stages of tourists, and neglected the pre-travel stage. This study examines the influence of guided mental simulation of an upcoming tourist experience on subsequent on-site tourist experience and experience evaluation. The research simulated real-world experience with tour videos shot from the first-person perspective, and measured the variables using both eye movements and self-reporting. Multivariate ANOVA and multigroup analysis were then performed on the data. The results showed that a process simulation of tourists having an engagement experience and an outcome simulation of tourists having a sight-seeing experience resulted in a higher engagement level and higher emotional response during the on-site experience, higher evaluation of the experience, and a greater impact of engagement level on their evaluation. This study expands the research on tourists' psychological experience in the pre-travel stage. Results indicate that the period from the moment consumers book or purchase the tourist product to the moment they actually embark on the tourist experience is a valuable marketing window.
Ying Xu; Jia-Qiong Xie; Fu-Xing Wang; Rebecca L Monk; James Gaskin; Jin-Liang Wang
The impact of Weibo features on user's information comprehension: The mediating role of cognitive load Journal Article
In: Social Science Computer Review, pp. 1–19, 2022.
Social media, such as Microblogs, have become an important source for people to obtain information. However, we know little about how this would influence our comprehension over online information. Based on the cognitive load theory, this research explores whether and how two important features of Weibo, which are the feedback function and information fragmentation, would increase cognitive load and may in turn hinder users' information comprehension in Weibo. A 2 (feedback or non-feedback) × 2 (strong-interference or weak-interference information) between-participants experimental design was conducted. Our results revealed that the Weibo feedback function and interference information exerted a negative impact over information comprehension via inducing increased cognitive load. Specifically, these results deepened our understanding regarding the impact of Weibo features on online information comprehension and suggest the mechanism by which this occurs. This finding has implications for how to minimize the potential cost of using Weibo and maximize the adaptive development of social media.
Jinghui Yin; Jiande Sun; Jing Li; Ke Liu
An effective gaze-based authentication method with the spatiotemporal feature of eye movement Journal Article
In: Sensors, vol. 22, no. 3002, pp. 1–18, 2022.
Eye movement has become a new behavioral feature for biometric authentication. In the eye movement-based authentication methods that use temporal features and artificial design features, the required duration of eye movement recordings are too long to be applied. Therefore, this study aims at using eye movement recordings with shorter duration to realize authentication. And we give out a reasonable eye movement recording duration that should be less than 12 s, referring to the changing pattern of the deviation degree between the gaze point and the stimulus point on the screen. In this study, the temporal motion features of the gaze points and the spatial distribution features of the saccade are using to represent the personal identity. Two datasets are constructed for the experiments, including 5 s and 12 s of eye movement recordings. On the datasets constructed in this paper, the open-set authentication results show that the Equal Error Rate of our proposed methods can reach 10.62% when recording duration is 12 s and 12.48% when recording duration is 5 s. The closed-set authentication results show that the Equal Error Rate of our proposed methods can reach 5.25% when recording duration is 12 s and 7.82% when recording duration is 5 s. It demonstrates that the proposed method provides a reference for the eye movements data-based identity authentication.
Olugbemi Aroke; Sogand Hasanzadeh; Behzad Esmaeili; Michael D. Dodd; Rebecca Brock
Using worker characteristics, personality, and attentional distribution to predict hazard identification performance: A moderated mediation analysis Journal Article
In: Journal of Construction Engineering and Management, vol. 148, no. 6, pp. 1–16, 2022.
This study investigated the moderating effect of personality traits in the association between worker characteristics (work experience, training, and previous injury exposure) and hazard-identification performance through mechanisms of visual attentional indicators. Through an integrated moderated mediation model, the attentional distribution, search strategy, and hazard-identification performance of participants were examined across 115 fall hazards. Results indicate that individuals with more work experience and safety training were better at hazard identification independent of visual attention and regardless of personality. Furthermore, individual differences in conscientiousness and openness personality dimensions significantly moderated the associations between (1) worker characteristics and visual attention; and (2) visual attention and hazard identification. This study provides empirical evidence for the potentially pivotal role of worker characteristics and dispositional traits with regard to hazard-identification performance on jobsites. These findings can empower safety managers to identify at-risk workers and design personalized intervention strategies to improve the hazard-identification skills of workers.
Jacky R. Claydon; Matthew C. Fysh; Jonathan E. Prunty; Filipe Cristino; Reuben Moreton; Markus Bindemann
Facial comparison behaviour of forensic facial examiners Journal Article
In: Applied Cognitive Psychology, pp. 1–20, 2022.
Facial examiners make visual comparisons of face images to establish the identities of persons in police investigations. This study utilised eye-tracking and an individual differences approach to investigate whether these experts exhibit specialist viewing behaviours during identification, by comparing facial examiners with forensic fingerprint analysts and untrained novices across three tasks. These comprised of face matching under unlimited (Experiment 1) and time-restricted viewing (Experiment 2), and with a feature-comparison protocol derived from examiner casework procedures (Experiment 3). Facial examiners exhibited individual differences in facial comparison accuracy and did not consistently outperform fingerprint analysts and novices. Their behaviour was also marked by similarities to the comparison groups in terms of how faces were viewed, as evidenced from eye movements, and how faces were perceived, based on the made feature judgements and identification decisions. These findings further understanding of how facial comparisons are performed and clarify the nature of examiner expertise.
Joe Cutting; Paul Cairns
Investigating game attention using the Distraction Recognition Paradigm Journal Article
In: Behaviour and Information Technology, vol. 41, no. 5, pp. 981–1001, 2022.
Digital games are well known for holding players' attention and stopping them from being distracted by events around them. Being able to quantify how well games hold attention provides a behavioral foundation for measures of game engagement and a link to existing research on attention. We developed a new behavioral measure of how well games hold attention, based on players' post-game recognition of irrelevant distractors which are shown around the game. This is known as the Distractor Recognition Paradigm (DRP). In two studies we show that the DRP is an effective measure of how well self-paced games hold attention. We show that even simple self-paced games can hold players' attention completely and the consistency of attentional focus is moderated by game engagement. We compare the DRP to existing measures of both attention and engagement and consider how practical it is as a measure of game engagement. We find no evidence that eye tracking is a superior measure of attention to distractor recognition. We discuss existing research on attention and consider implications for areas such as motivation to play and serious games.
Jessica Dawson; Tom Foulsham
Your turn to speak? Audiovisual social attention in the lab and in the wild Journal Article
In: Visual Cognition, vol. 30, no. 1-2, pp. 116–134, 2022.
In everyday group conversations, we must decide whom to pay attention to and when. This process of dynamic social attention is important for goals both perceptual and social. The present study investigated gaze during a conversation in a realistic group and in a controlled laboratory study where third-party observers watched videos of the same group. In both contexts, we explore how gaze allocation is related to turn-taking in speech. Experimental video clips were edited to either remove the sound, freeze the video, or transition to a blank screen, allowing us to determine how shifts in attention between speakers depend on visual or auditory cues. Gaze behaviour in the real, interactive situation was similar to the fixations made by observers watching a video. Eyetracked participants often fixated the person speaking and shifted gaze in response to changes in speaker, even when sound was removed or the video freeze-framed. These findings suggest we sometimes fixate the location of speakers even when no additional visual information can be gained. Our novel approach offers both a comparison of interactive and third-party viewing and the opportunity for controlled experimental manipulations. This delivers a rich understanding of gaze behaviour and multimodal attention during a conversation following.
Joost Winter; Jimmy Hu; Bastiaan Petermeijer
Ipsilateral and contralateral warnings: Effects on decision-making and eye movements in near-collision scenarios Journal Article
In: Journal on Multimodal User Interfaces, vol. 16, pp. 303–317, 2022.
Cars are increasingly capable of providing drivers with warnings and advice. However, whether drivers should be provided with ipsilateral warnings (signaling the direction to steer towards) or contralateral warnings (signaling the direction to avoid) is inconclusive. Furthermore, how auditory warnings and visual information from the driving environment together contribute to drivers' responses is relatively unexplored. In this study, 34 participants were presented with animated video clips of traffic situations on a three-lane road, while their eye movements were recorded with an eye-tracker. The videos ended with a near collision in front after 1, 3, or 6 s, while either the left or the right lane was safe to swerve into. Participants were instructed to make safe lane-change decisions by pressing the left or right arrow key. Upon the start of each video, participants heard a warning: Go Left/Right (ipsilateral), Danger Left/Right (contralateral), and nondirectional beeps (Baseline), emitted from the spatially corresponding left and right speakers. The results showed no significant differences in response times and accuracy between ipsilateral and contralateral warnings, although participants rated ipsilateral warnings as more satisfactory. Ipsilateral and contralateral warnings both improved response times in situations in which the left/right hazard was not yet manifest or was poorly visible. Participants fixated on salient and relevant vehicles as quickly as 220 ms after the trial started, with no significant differences between the audio types. In conclusion, directional warnings can aid in making a correct left/right evasive decision while not affecting the visual attention distribution.
Yke Bauke Eisma; Dirk J. Eijssen; Joost C. F. Winter
What attracts the driver's eye? Attention as a function of task and events Journal Article
In: Information, vol. 13, pp. 1–15, 2022.
This study explores how drivers of an automated vehicle distribute their attention as a function of environmental events and driving task instructions. Twenty participants were asked to monitor pre-recorded videos of a simulated driving trip while their eye movements were recorded using an eye-tracker. The results showed that eye movements are strongly situation-dependent, with areas of interest (windshield, mirrors, and dashboard) attracting attention when events (e.g., passing vehicles) occurred in those areas. Furthermore, the task instructions provided to participants (i.e., speed monitoring or hazard monitoring) affected their attention distribution in an interpretable manner. It is concluded that eye movements while supervising an automated vehicle are strongly ‘top-down', i.e., based on an expected value. The results are discussed in the context of the development of driver availability monitoring systems.
Chelsea L. Fitzpatrick; Hyoun S. Kim; Christopher R. Sears; Daniel S. Mcgrath
Attentional bias in non–smoking electronic cigarette users: An eye-tracking study Journal Article
In: Nicotine and Tobacco Research, vol. 24, pp. 1439–1447, 2022.
Introduction: This study examined attentional bias (AB) to e-cigarette cues among a sample of non–smoking daily e-cigarette users (n = 27), non–smoking occasional e-cigarette users (n = 32), and control participants (n = 61) who did not smoke or use e-cigarettes. The possibility that e-cigarette users develop a transference of cues to traditional cigarettes was also examined. Methods: AB was assessed using a free-viewing eye-gaze tracking methodology, in which participants viewed 180 pairs of images for 4 seconds (e-cigarette and neutral image, e-cigarette and smoking image, smoking and neutral image). Results: Daily and occasional e-cigarette users attended to pairs of e-cigarette and neutral images equally, whereas non–users attended to neu- tral images significantly more than e-cigarette images. All three groups attended to e-cigarette images significantly more than smoking images, with significantly larger biases for e-cigarette users. There were no between-group differences in attention to pairs of smoking and neutral images. A moderation analysis indicated that for occasional users but not daily users, years of vaping reduced the bias toward neutral images over smoking images. Conclusions: Taken together, the results indicate that the e-cigarette users exhibit heightened attention to e-cigarettes relative to non–users, which may have implications as to how they react to e-cigarette cues in real-world settings. AB for e-cigarettes did not transfer to traditional cig- arette cues, which indicates that further research is required to identify the mechanisms involved in the migration of e-cigarettes to traditional cigarettes. Implications: This study is the first attempt to examine attentional biases for e-cigarette cues among non–smoking current e-cigarette users using eye-gaze tracking. The results contribute to the growing literature on the correlates of problematic e-cigarette use and indicate that daily and occasional e-cigarette use is associated with attentional biases for e-cigarettes. The existence of attentional biases in e-cigarette users may help to explain the high rate of failure to quit e-cigarettes and provides support for the utility of attentional bias modification in the treatment of problematic e-cigarette use. Introduction
Erin T. Gannon; Michael A. Grubb
How filmmakers guide the eye: The effect of average shot length on intersubject attentional synchrony Journal Article
In: Psychology of Aesthetics, Creativity, and the Arts, vol. 16, no. 1, pp. 125–134, 2022.
As editing technology has advanced, filmmakers have become increasingly skilled at manipulating overt attention such that eye movements are highly synchronized during film viewing. Average shot length (ASL; film length/number of shots) is a quantitative metric in film studies that may help us understand this perceptual phenomenon. Since shorter shots give viewers less time to voluntarily scan images, we predicted that shorter ASLs would yield greater attentional synchrony across viewers. We recorded participants' eye movements as they viewed clips from commercially produced films with varying ASLs, and in line with our hypothesis, we found that ASL and attentional synchrony were negatively related. These findings were replicated in an independent sample of participants who viewed a different set of clips from the same films used in Experiment 1. Comparing across experiments, we found that within the same films, clips with shorter ASLs synchronized eye movements to a greater extent than did clips with longer ASLs. Studies of film perception have long implied that ASL modulates eye movements across viewers, and this study provides robust empirical evidence to support that claim.
Zhibing Gao; Ziang Li; Xiangling Zhuang; Guojie Ma
Advantages of graphical nutrition facts label: Faster attention capture and improved healthiness judgement Journal Article
In: Ergonomics, pp. 1–17, 2022.
Consumers have to rely on the traditional back-of-package nutrition facts label (NFL) to obtain nutrition information in many countries. However, traditional NFLs have been criticised for their poor visualisation and low efficiency. This study redesigned back-of-package NFLs integrated with bar graphs (black or coloured) to visually indicate nutrient reference values (NRVs). Two eye movement studies were performed to evaluate the ergonomic advantages of the graphical NFLs. Our findings suggested that the newly designed NFLs led to faster and better healthiness evaluation performance. The newly designed graphical labels led to a shorter time to first fixation duration and offered a higher percentage of fixation time in the nutrient reference values region compared with that observed using traditional text labels. Nowadays, many chronic diseases are associated with poor eating habits, therefore, the importance of visualisation design to nudge healthier food choices could be paid more attention to by policymakers and food manufacturers.
Mairéad Hogan; Chris Barry; Michael Lang; Business Information Systems
Dissecting optional micro-decisions in online transactions: Perceptions, deceptions, and errors Journal Article
In: ACM Transactions on Computer-Human Interaction, vol. 29, no. 6, pp. 1–27, 2022.
Online firms frequently increase profit by selling optional extras. However, opt-in rates tend to be low. In response, questionable design practices have emerged to nudge consumers into inadvertent choices. Many of these design constructs are presented using an opt-out design. Using eye tracking and think-aloud data techniques, this research investigates the impact of the framing and optionality of micro-decisions on user perceptions and error rates. Focusing on opt-out decisions, the study found: up to one in three users make errors in decision-making; there is a higher error rate for rejection-framed opt-out decisions; users widely misinterpret decision framing; and failure to read decision text results in rushed and unsighted decisions, even leading users to automatically construe un-ticked checkboxes as opt-in decisions. In talking afterwards about their experiences, users expressed strong negative emotions, feeling confused, manipulated and resentful. Many suggested they would, in practice, steer away from similar encounters toward more unambiguous and honest sites. These findings might alert managers and developers, tempted to use dark patterns, that such a strategy might backfire over time.
Luke Hsiao; Brooke Krajancich; Philip Levis; Gordon Wetzstein; Keith Winstein
Towards retina-quality VR video streaming: 15 ms Could Save You 80% of Your Bandwidth Journal Article
In: Computer Communication Review, vol. 52, no. 1, pp. 10–19, 2022.
Virtual reality systems today cannot yet stream immersive, retina-quality virtual reality video over a network. One of the greatest challenges to this goal is the sheer data rates required to transmit retina-quality video frames at high resolutions and frame rates. Recent work has leveraged the decay of visual acuity in human perception in novel gaze-contingent video compression techniques. In this paper, we show that reducing the motion-to-photon latency of a system itself is a key method for improving the compression ratio of gaze-contingent compression. Our key finding is that a client and streaming server system with sub-15ms latency can achieve 5x better compression than traditional techniques while also using simpler software algorithms than previous work.
Fatemeh Jam; Hamid Reza Azemati; Abdulhamid Ghanbaran; Jamal Esmaily; Reza Ebrahimpour
The role of expertise in visual exploration and aesthetic judgment of residential building façades: An eye-tracking study Journal Article
In: Psychology of Aesthetics, Creativity, and the Arts, vol. 16, no. 1, pp. 148–163, 2022.
The building façade has considerable effects on the aesthetic experience of observers. However, the experience may differ depending on the observers' expertise. This study was conducted to explore the impact of expertise on preference, visual exploration, and cognitive experience during the aesthetic judgment of designed façades. For this purpose, we developed a paradigm in two separate parts: aesthetic judgment (AJ) and eye movement recording (EMR). Thirty-eight participants participated in this experiment in two groups (21 experts/17 nonexperts). The results revealed significant differences between the two groups in terms of the type and number of preferred façades, as well as eye movement indicators. In addition, based on judgment reaction time and fixation duration as proxy measures of cognitive experience, it was found that expertise might be correlated with cognitive load and task demand. The findings indicate the importance of façades for both groups and suggest that their physical attributes could be effectively manipulated to impact aesthetic experiences in relation to architectural designs.
Lewis T. Jayes; Gemma Fitzsimmons; Mark J. Weal; Johanna K. Kaakinen; Denis Drieghe
The impact of hyperlinks, skim reading and perceived importance when reading on the Web Journal Article
In: PLoS ONE, vol. 17, no. 2, pp. 1–28, 2022.
It has previously been shown that readers spend a great deal of time skim reading on the Web and that this type of reading can affect comprehension of text. Across two experiments, we examine how hyperlinks influence perceived importance of sentences and how perceived importance in turn affects reading behaviour. In Experiment 1, participants rated the importance of sentences across passages of Wikipedia text. In Experiment 2, a different set of participants read these passages while their eye movements were tracked, with the task being either reading for comprehension or skim reading. Reading times of sentences were analysed in relation to the type of task and the importance ratings from Experiment 1. Results from Experiment 1 show readers rated sentences without hyperlinks as being of less importance than sentences that did feature hyperlinks, and this effect is larger when sentences are lower on the page. It was also found that short sentences with more links were rated as more important, but only when they were presented at the top of the page. Long sentences with more links were rated as more important regardless of their position on the page. In Experiment 2, higher importance scores resulted in longer sentence reading times, measured as fixation durations. When skim reading, however, importance ratings had a lesser impact on online reading behaviour than when reading for comprehension. We suggest readers are less able to establish the importance of a sentence when skim reading, even though importance could have been assessed by information that would be fairly easy to extract (i.e. presence of hyperlinks, length of sentences, and position on the screen).
Rebecca L. Johnson; Devika Nambiar; Gabriella Suman
Using eye-movements to assess underlying factors in online purchasing behaviors Journal Article
In: International Journal of Consumer Studies, vol. 46, no. 4, pp. 1365–1380, 2022.
The field of consumer neuroscience allows researchers to account for an individual's explicit reported behaviors as well as their implicit behaviors that are reflected in the neural mechanisms that occur during the purchase decision phase of a consumer's online shopping experience. The purpose of the current study was to use eye-tracking technology in conjunction with self-report purchase intention data to observe the relative impact of star rating, price, discount, and time pressure on purchase decisions. The results suggest that purchase intention was most affected by star rating, price, and discount with higher purchase intentions on items with higher star ratings, lower prices, and greater discounts. The eye movement data revealed that these factors, as well as time pressure, influenced where consumers directed their attention in making their purchasing decisions. These findings have significant implications for future ecommerce marketing strategy, especially across efforts to increase purchase intention.
Nadezhda Kerimova; Pavel Sivokhin; Diana Kodzokova; Karine Nikogosyan; Vasily Klucharev
Visual processing of green zones in shared courtyards during renting decisions: An eye-tracking study Journal Article
In: Urban Forestry and Urban Greening, vol. 68, pp. 127460, 2022.
We used an eye-tracking technique to investigate the effect of green zones and car ownership on the attrac- tiveness of the courtyards of multistorey apartment buildings. Two interest groups—20 people who owned a car and 20 people who did not a car—observed 36 images of courtyards. Images were digitally modified to manipulate the spatial arrangement of key courtyard elements: green zones, parking lots, and children's play- grounds. The participants were asked to rate the attractiveness of courtyards during hypothetical renting decisions. Overall, we investigated whether visual exploration and appraisal of courtyards differed between people who owned a car and those who did not. The participants in both interest groups gazed longer at perceptually salient playgrounds and parking lots than at greenery. We also observed that participants gazed significantly longer at the greenery in courtyards rated as most attractive than those rated as least attractive. They gazed significantly longer at parking lots in courtyards rated as least attractive than those rated as most attractive. Using regression analysis, we further investigated the relationship between gaze fixations on courtyard elements and the attractiveness ratings of courtyards. The model confirmed a significant positive relationship between the number and duration of fixations on greenery and the attractiveness estimates of courtyards, while the model showed an opposite relationship for the duration of fixations on parking lots. Interestingly, the positive association between fixations on greenery and the attractiveness of courtyards was significantly stronger for participants who owned cars than for those who did not. These findings confirmed that the more people pay attention to green areas, the more positively they evaluate urban areas. The results also indicate that urban greenery may differentially affect the preferences of interest groups. 1.
Hassen Kerkeni; Dominik Brügger; Georgios Mantokoudis; Mathias Abegg; David S. Zee
Pharmacological and behavioral strategies to improve vision in acquired pendular nystagmus Journal Article
In: American Journal of Case Reports, vol. 23, pp. 1–5, 2022.
Objective: Unusual setting of medical care. Background: Acquired pendular nystagmus (APN) is a back and forth, oscillatory eye movement in which the 2 oppositely directed slow phases have similar waveforms. APN occurs commonly in multiple sclerosis and causes a disabling oscillopsia that impairs vision. Previous studies have proven that symptomatic therapy with gabapentin or me-mantine can reduce the nystagmus amplitude or frequency. However, the effect of these medications on visual acuity (VA) is less known and to our knowledge the impact of non-pharmacological strategies such as blinking on VA has not been reported. This is a single observational study without controls (Class IV) and is meant to suggest a future strategy for study of vision in patients with disabling nystagmus and impaired vision. Case Report: A 49-year-old woman with primary progressive multiple sclerosis with spastic paraparesis and a history of optic atrophy presented with asymmetrical binocular APN and bothersome oscillopsia. We found that in the eye with greater APN her visual acuity improved by 1 line (from 0.063 to 0.08 decimals) immediately after blinking. During treatment with memantine, her VA without blinking increased by 2 lines, from 0.063 to 0.12, but improved even more (from 0.12 to 0.16) after blinking. In the contralateral eye with a barely visible nystagmus, VA was reduced by 1 line briefly ($sim$500 ms) after blinking. Conclusions: In a patient with APN, blinking transiently improved vision. The combination of pharmacological treatment with memantine and the blinking strategy may induce better VA and less oscillopsia than either alone.
Hyoun S. Kim; Emma V. Ritchie; Christopher R. Sears; David C. Hodgins; Kristy R. Kowatch; Daniel S. McGrath
Affective impulsivity moderates the relationship between disordered gambling severity and attentional bias in electronic gaming machine (EGM) players Journal Article
In: Journal of Behavioral Addictions, vol. 11, no. 2, pp. 386–395, 2022.
Background and aims: Attentional bias to gambling-related stimuli is associated with increased severity of gambling disorder. However, the addiction-related moderators of attentional bias among those who gamble are largely unknown. Impulsivity is associated with attentional bias among those who abuse substances, and we hypothesized that impulsivity would moderate the relationship between disordered electronic gaming machine (EGM) gambling and attentional bias. Methods: We tested whether facets of impulsivity, as measured by the UPPS-P (positive urgency, negative urgency, sensation seeking, lack of perseverance, lack of premeditation) and the Barratt Impulsiveness Scale-11 (cognitive, motor, non-planning) moderated the relationship between increased severity of gambling disorder, as measured by the Problem Gambling Severity Index (PGSI), and attentional bias. Seventy-five EGM players participated in a free-viewing eye-tracking paradigm to measure attentional bias to EGM images. Results: Attentional bias was significantly correlated with Barratt Impulsiveness Scale-11 (BIS-11) motor, positive urgency, and negative urgency. Only positive and negative urgency moderated the relationship between PGSI scores and attentional bias. For participants with high PGSI scores, higher positive and negative urgency were associated with larger attentional biases to EGM stimuli. Discussion: The results indicate that affective impulsivity is an important contributor to the association between gambling disorder and attentional bias.
Clare Kirtley; Christopher Murray; Phillip B. Vaughan; Benjamin W. Tatler
Navigating the narrative: An eye‐tracking study of reader's strategies when reading comic page layouts Journal Article
In: Applied Cognitive Psychology, pp. 1–19, 2022.
In multimedia stimuli (e.g., comics), the reader must follow a narrative in which text and image both contribute information, and artists may use more irregular layouts which must still be followed correctly. While previous work has found that the exter- nal structure (outlines) of panels is a major contributor to navigation decisions in comics, other studies have shown that panel content can affect reading order. The present studies use eye-tracking to investigate these contributions further. In Experi- ment 1, the reading behaviors on six layout variations were compared. The influence of the external structure was replicated, but an effect of text location was also found for one layout type. Experiment 2 focused on variations of this particular layout, manipulating the location of text within critical panels. Panel content was a consis- tent effect for all variations. While most navigation decisions are made using the external structure, content becomes key when resolving ambiguous layouts.
Jan-Louis Kruger; Natalia Wisniewska; Sixin Liao
Why subtitle speed matters: Evidence from word skipping and rereading Journal Article
In: Applied Psycholinguistics, vol. 43, pp. 211–236, 2022.
High subtitle speed undoubtedly impacts the viewer experience. However, little is known about how fast subtitles might impact the reading of individual words. This article presents new findings on the effect of subtitle speed on viewers' reading behavior using word-based eye-tracking measures with specific attention to word skipping and rereading. In multimodal reading situations such as reading subtitles in video, rereading allows people to correct for oculomotor error or comprehension failure during linguistic processing or integrate words with elements of the image to build a situation model of the video. However, the opportunity to reread words, to read the majority of the words in the subtitle and to read subtitles to completion, is likely to be compromised when subtitles are too fast. Participants watched videos with subtitles at 12, 20, and 28 characters per second (cps) while their eye movements were recorded. It was found that comprehension declined as speed increased. Eye movement records also showed that faster subtitles resulted in more incomplete reading of subtitles. Furthermore, increased speed also caused fewer words to be reread following both horizontal eye movements (likely resulting in reduced lexical processing) and vertical eye movements (which would likely reduce higher-level comprehension and integration).
Wenjie Li; Yuxiao Zhou; Shijian Luo; Yenan Dong
Design factors to improve the consistency and austainable user experience of responsive interface design Journal Article
In: Sustainability, vol. 14, pp. 1–26, 2022.
Computers have been extended to a variety of devices, such as smart phones, tablets, and smart watches, thereby increasing the importance of responsive interfaces across multi-terminal devices. To ensure a consistent and sustainable user experience for websites and software products, it is important to study the layout, design elements, and users' visual perception of different terminal interfaces. In this paper, the multi-terminal interfaces of 40 existing responsive websites were studied in a hierarchical grouping experiment, and six typical interface layouts were classified and extracted. Then, the main design factors affecting interface consistency of the responsive website were extracted and classified through eye tracking and a questionnaire survey. Finally, taking a sales management software tool (SA) as an example for design application, we successfully created responsive interfaces across multi-terminal devices with a consistent and sustainable experience.
Chi-Hung Liu; June Hung; Chun-Wei Chang; John J. H. Lin; Elaine Shinwei Huang; Shu-Ling Wang; Li-Ang Lee; Cheng-Ting Hsiao; Pi-Shan Sung; Yi-Ping Chao; Yeu-Jhy Chang
Oral presentation assessment and image reading behaviour on brain computed tomography reading in novice clinical learners: An eye-tracking study Journal Article
In: BMC Medical Education, vol. 22, pp. 1–10, 2022.
Background: To study whether oral presentation (OP) assessment could reflect the novice learners' interpretation skills and reading behaviour on brain computed tomography (CT) reading. Methods: Eighty fifth-year medical students were recruited, received a 2-hour interactive workshop on how to read brain CT, and were assigned to read two brain CT images before and after instruction. We evaluated their image reading behaviour in terms of overall OP post-test rating, the lesion identification, and competency in systematic image reading after instruction. Students' reading behaviour in searching for the target lesions were recorded by the eye-tracking technique and were used to validate the accuracy of lesion reports. Statistical analyses, including lag sequential analysis (LSA), linear mixed models, and transition entropy (TE) were conducted to reveal temporal relations and spatial complexity of systematic image reading from the eye movement perspective. Results: The overall OP ratings [pre-test vs. post-test: 0 vs. 1 in case 1, 0 vs. 1 in case 2, p < 0.001] improved after instruction. Both the scores of systematic OP ratings [0 vs.1 in both cases, p < 0.001] and eye-tracking studies (Case 1: 3.42 ± 0.62 and 3.67 ± 0.37 in TE
Jing Luan; Jie Xiao; Pengfei Tang; Meng Li
Positive effects of negative reviews: An eye-tracking perspective Journal Article
In: Internet Research, vol. 32, no. 1, pp. 197–218, 2022.
Purpose: A counterintuitive finding of existing research is that negative reviews can produce positive effects; for example, they can increase purchase likelihood and sales by increasing product awareness. It is important to continue highlighting this fact and to develop further insights into this positive effect, as a more thorough analysis can provide online retailers with a more comprehensive understanding of how to effectively manage and use negative reviews. Thus, by using an eye-tracking method, this paper attempts to provide a further thorough analysis of positive effects of negative reviews from a cognitive perspective. Design/methodology/approach: An eye-tracking experiment with two tests over a time delay was performed to examine whether negative reviews have some positive effects. Review valence (positive vs. negative), brand popularity (popular vs. unpopular) and advertising exposure (no repetition vs. repetition) were considered in the experiment. Findings: The results show that a cognitive process of attention allocation happens when consumers deal with brand popularity cues and that arousal evoking and attention allocation occur when handling review valence. Allocation of more attention to unpopular brands helps improve brand awareness and enhance brand memory, and larger arousal from negative reviews narrows attention and leads to a better memory of products and brands. However, with the passage of time, the memory of review valence can dissociate and fade, and the remaining awareness of and familiarity with unpopular brands with negative reviews contribute to a positive reversion, which leads to the production of positive effects from negative reviews. Originality/value: This paper contributes to the literature on online reviews by examining the visual processing of review valence and brand popularity with an eye-tracking method and by revealing the cognitive mechanism of positive effects of negative reviews from a visual attention perspective.
Beatriz Martín-Luengo; Andriy Myachykov; Yury Shtyrov
Deliberative process in sharing information with different audiences: Eye-tracking correlates Journal Article
In: Quarterly Journal of Experimental Psychology, vol. 75, no. 4, pp. 730–741, 2022.
Research on conversational pragmatics demonstrates how interlocutors tailor the information they share depending on the audience. Previous research showed that, in informal contexts, speakers often provide several alternative answers, whereas in formal contexts, they tend to give only a single answer; however, the psychological underpinnings of these effects remain obscure. To investigate this answer selection process, we measured participants' eye movements in different experimentally modelled social contexts. Participants answered general knowledge questions by providing responses with either single (one) or plural (three) alternatives. Then, a formal (job interview) or informal (conversation with friends) context was presented and participants decided either to report or withdraw their responses after considering the given social context. Growth curve analysis on the eye movements indicates that the selected response option attracted more eye movements. There was a discrepancy between the answer selection likelihood and the proportion of fixations to the corresponding option—but only in the formal context. These findings support a more elaborate decision-making processes in formal contexts. They also suggest that eye movements do not necessarily accompany the options considered in the decision-making processes.
Nadine Matton; Pierre-Vincent Paubel; Sébastien Puma
Toward the use of pupillary responses for pilot selection Journal Article
In: Human Factors, vol. 64, no. 3, pp. 555–567, 2022.
Objective: For selection practitioners, it seems important to assess the level of mental resources invested in order to perform a demanding task. In this study, we investigated the potential of pupil size measurement to discriminate the most proficient pilot students from the less proficient. Background: Cognitive workload is known to influence learning outcome. More specifically, cognitive difficulties observed during pilot training are often related to a lack of efficient mental workload management. Method: Twenty pilot students performed a laboratory multitasking scenario, composed of several stages with increasing workload, while their pupil size was recorded. Two levels of pilot students were compared according to the outcome after 2 years of training: high success and medium success. Results: Our findings suggested that task-evoked pupil size measurements could be a promising predictor of flight training difficulties during the 2-year training. Indeed, high-level pilot students showed greater pupil size changes from low-load to high-load stages of the multitasking scenario than medium-level pilot students. Moreover, average pupil diameters at the low-load stage were smallest for the high-level pilot students. Conclusion: Following the neural efficiency hypothesis framework, the most proficient pilot students supposedly used their mental resources more efficiently than the least proficient while performing the multitasking scenario. Application: These findings might introduce a new way of managing selection processes complemented with ocular measurements. More specifically, pupil size measurement could enable identification of applicants with greater chances of success during pilot training.
Tarikere T. Niranjan; Narendra K. Ghosalya; Srinagesh Gavirneni
Crying wolf and a knowing wink: A behavioral study of order inflation and discounting in supply chains Journal Article
In: Production and Operations Management, vol. 31, no. 3, pp. 1071–1088, 2022.
Two field case studies uncover information discounting in supply chains, which manifests in the form of schedule padding and order inflation. Buyers often exaggerate the urgency and quantity of their needs (“crying wolf”). However, both buyers and suppliers eliminate old, inflated orders from their behavioral ordering/supply system implicitly (“knowing wink”) even though they exist in the hyper-rational ordering system represented by the ERP system. This behavior results in (and from) low credibility of information exchanged between the buyers and suppliers and their subsequent actions, and settles in a suboptimal equilibrium. Eye tracking experiments based on these case studies unpack the psychophysiological mechanisms behind this behavior, specifically, how decision makers consider past UnFilled Orders under different experimental conditions. We find that merely improving the supplier behavior does not help: information discounting reduces only when we sensitize the buyer to the improvement in the supplier behavior. However, this comes with no financial performance improvements; performance improves by further educating the buyers of the optimal target inventory.
Suhyun Park; Louis Wiliams; Rebecca Chamberlain
Global saccadic eye movements characterise artists' visual ttention while drawing Journal Article
In: Empirical Studies of the Arts, vol. 40, no. 2, pp. 228–244, 2022.
Previous research has shown that artists employ flexible attentional strategies during offline perceptual tasks. The current study explored visual processing online, by tracking the eye movements of artists and non-artists (n=65) while they produced representational drawings of photographic stimuli. The findings revealed that it is possible to differentiate artists from non-artists on the basis of the relative amount of global-to-local saccadic eye movements they make when looking at the target stimulus while drawing, but not in a preparatory free viewing phase. Results indicated that these differences in eye movements are not specifically related to representational drawing ability, and may be a feature of artistic ability more broadly. This eye movement analysis technique may be used in future research to characterise the dynamics of attentional shifts in eye movements while artists are carrying out a range of artistic tasks.
Zhongling Pi; Jiumin Yang; Weiping Hu; Jianzhong Hong
The relation between openness and creativity is moderated by attention to peers' ideas in electronic brainstorming Journal Article
In: Interactive Learning Environments, vol. 30, no. 2, pp. 344–352, 2022.
An emerging body of research has focused on students' creativity in group contexts, with the assumption that students could be inspired by peers' ideas. Although students' openness and attention to peers' ideas are claimed to play important roles in their creativity in group settings, there is little empirical research that tests this assumption. This study examined the moderating effect of attention to peers' ideas in the relation between openness and creativity in electronic brainstorming. Participants were 91 undergraduate students who took about 10 min to complete a creative idea generation task during electronic brainstorming. Regression analyses found that students who were characterized by high openness were more creative, but only when they showed more attention to peers' ideas. This suggests that electronic brainstorming can be useful for enhancing the creativity of some students.
Chou P. Hung; Chloe Callahan-Flintoft; Paul D. Fedele; Kim F. Fluitt; Barry D. Vaughan; Anthony J. Walker; Min Wei
Low-contrast acuity under strong luminance dynamics and potential benefits of divisive display augmented reality Journal Article
In: Journal of Perceptual Imaging, vol. 4, no. 1, pp. 1–9, 2021.
Abstract Understanding and predicting outdoor visual performance in augmented reality (AR) requires characterizing and modeling vision under strong luminance dynamics, including luminance differences of 10000-to-1 in a single image (high dynamic range, HDR). Classic models of vision, based on displays with 100-to-1 luminance contrast, have limited ability to generalize to HDR environments. An important question is whether low-contrast visibility, potentially useful for titrating saliency for AR applications, is resilient to saccade-induced strong luminance dynamics. The authors developed an HDR display system with up to 100,000-to-1 contrast and assessed how strong luminance dynamics affect low-contrast visual acuity. They show that, immediately following flashes of 25× or 100× luminance, visual acuity is unaffected at 90% letter Weber contrast and only minimally affected at lower letter contrasts (up to +0.20 LogMAR for 10% contrast). The resilience of low-contrast acuity across luminance changes opens up research on divisive display AR (ddAR) to effectively titrate salience under naturalistic HDR luminance.
Leah A. Irish; Allison C. Veronda; Amanda E. Lamsweerde; Michael P. Mead; Stephen A. Wonderlich
The process of developing a sleep health improvement plan: A lab-based model of self-help behavior Journal Article
In: International Journal of Behavioral Medicine, vol. 28, no. 1, pp. 96–106, 2021.
Background: Although self-help strategies to improve sleep are widely accessible, little is known about the ways in which individuals interact with these resources and the extent to which people are successful at improving their own sleep based on sleep health recommendations. The present study developed a lab-based model of self-help behavior by observing the development of sleep health improvement plans (SHIPs) and examining factors that may influence SHIP development. Method: Sixty healthy, young adults were identified as poor sleepers during one week of actigraphy baseline and recruited to develop and implement a SHIP. Participants viewed a list of sleep health recommendations through an eye tracker and provided information on their current sleep health habits. Each participant implemented their SHIP for 1 week during which sleep was assessed with actigraphy. Results: Current sleep health habits, but not patterns of visual attention, predicted SHIP goal selection. Sleep duration increased significantly during the week of SHIP implementation. Conclusions: Findings indicate that the SHIP protocol is an effective strategy for observing self-help behavior and examining factors that influence goal selection. The increase in sleep duration suggests that individuals may be successful at extending their own sleep, though causal mechanisms have not yet been established. This study presents a lab-based protocol for studying self-help sleep improvement behavior and takes an initial step toward gaining knowledge required to improve sleep health recommendations.
Ondřej Javora; Tereza Hannemann; Kristina Volná; Filip Děchtěrenko; Tereza Tetourová; Tereza Stárková; Cyril Brom
Is contextual animation needed in multimedia learning games for children? An eye tracker study Journal Article
In: Journal of Computer Assisted Learning, vol. 37, no. 2, pp. 305–318, 2021.
The present study investigates affective-motivational, attention, and learning effects of unexplored emotional design manipulation: Contextual animation (animation of contextual elements) in multimedia learning game (MLGs) for children. Participants (N = 134; Mage = 9.25; Grades 3 and 4) learned either from an experimental version of the MLG with a high amount of contextual animation or from an identical MLG with no contextual animation (control). Children strongly preferred ($chi$2 = 87.04, p <.001) and found the experimental version more attractive (p <.001
Jia Jin; Chenchen Lin; Fenghua Wang; Ting Xu; Wuke Zhang
A study of cognitive effort involved in the framing effect of summary descriptions of online product reviews for search vs. experience products Journal Article
In: Electronic Commerce Research, pp. 1–22, 2021.
Few studies have focused on summary descriptions of online product reviews regarding purchase decisions, and there is a gap between individual product reviews and summary descriptions of online product reviews. The current study applied eye-tracking to explore how the product type moderates the framing effect of summary descriptions of product reviews on e-consumers' purchase decisions. The results showed that product type moderated the framing effect of summary reviews on e-consumers' purchase intention. Specifically, for search products, compared with a negative frame, a positive frame increased e-consumers' attention to function attributes and led to higher purchase intention. However, with experience products, e-consumers' attention and purchase intention did not vary across framing messages. Referring to information asymmetry theory and signal theory, we posit that the cognitive effort involved in summary review information is high for search products and low for experience products since summary reviews are a more useful signal in reducing information asymmetry for search products than for experience products. The theoretical and practical implications are also discussed.
Miguel A. Lago; Aditya Jonnalagadda; Craig K. Abbey; Bruno B. Barufaldi; Predrag R. Bakic; Andrew D. A. Maidment; Winifred K. Leung; Susan P. Weinstein; Brian S. Englander; Miguel P. Eckstein
Under-exploration of three-dimensional images leads to search errors for small salient targets Journal Article
In: Current Biology, vol. 31, no. 5, pp. 1099–1106, 2021.
Advances in 3D imaging technology are transforming how radiologists search for cancer1,2 and how security officers scrutinize baggage for dangerous objects.3 These new 3D technologies often improve search over 2D images4,5 but vastly increase the image data. Here, we investigate 3D search for targets of various sizes in filtered noise and digital breast phantoms. For a Bayesian ideal observer optimally processing the filtered noise and a convolutional neural network processing the digital breast phantoms, search with 3D image stacks increases target information and improves accuracy over search with 2D images. In contrast, 3D search by humans leads to high miss rates for small targets easily detected in 2D search, but not for larger targets more visible in the visual periphery. Analyses of human eye movements, perceptual judgments, and a computational model with a foveated visual system suggest that human errors can be explained by interaction among a target's peripheral visibility, eye movement under-exploration of the 3D images, and a perceived overestimation of the explored area. Instructing observers to extend the search reduces 75% of the small target misses without increasing false positives. Results with twelve radiologists confirm that even medical professionals reading realistic breast phantoms have high miss rates for small targets in 3D search. Thus, under-exploration represents a fundamental limitation to the efficacy with which humans search in 3D image stacks and miss targets with these prevalent image technologies. Will 3D imaging technologies always lead to improvements for the visual search of targets? Lago et al. show that, when humans search 3D image stacks, they under-explore with eye movements, overestimate the area they have searched, and often miss small targets that are salient in 2D images.
Wei Li; Yushi Jiang; Miao Miao; Qing Yan; Fan He
Image congruence and visual object structure of anthropomorphic advertisement-eye movement research based on self-construct Journal Article
In: Journal of Contemporary Marketing Science, vol. 4, no. 2, pp. 260–279, 2021.
Purpose – Enterprises often use anthropomorphic images to display products. In this study, by discussing the differences of the anthropomorphic images of juxtaposition and fusion, the authors can distinguish the boundary conditions of the influence of different visual object structures on consumers' attention. Design/methodology/approach – Based on schema theory and information processing theory and using eye movement methods, this study analyzed the attractiveness of anthropomorphic images to consumers under different congruence levels through experiments of 2 (congruence: high and low) *2(visual object structure: juxtaposition and fusion)*2(self-construct: interdependent and independent). This study discusses the difference in the attractiveness of interdependent and independent consumers in the context of high congruence, juxtaposition and fusion of two visual object structures. Findings – The results show that compared with the low congruence anthropomorphic image, the high congruence anthropomorphic image can attract more attention of consumers. In the case of low compatibility of anthropomorphic images, the juxtaposition structure of anthropomorphic images is more attractive to consumers than the fusion structure. In the case of high compatibility of anthropomorphic images, for independent self-consumers, the attraction of fusion structure image is higher than the juxtaposition image, and for interdependent self-consumers, the attraction of juxtaposition image is higher than the fusion image. Originality/value – The conclusion enriches the anthropomorphic marketing theory. It reveals different degrees of attention paid to anthropomorphic image by consumers of different types of self-construct. Eye movement methods provide a new perspective for the study of anthropomorphic marketing and provide a reference for enterprises to publicize products or services through anthropomorphic image.
Song Liang; Ruihang Liu; Jiansheng Qian
Fixation prediction for advertising images: Dataset and benchmark Journal Article
In: Journal of Visual Communication and Image Representation, vol. 81, pp. 103356, 2021.
Existing saliency prediction methods focus on exploring a universal saliency model for natural images, relatively few on advertising images which typically consists of both textual regions and pictorial regions. To fill this gap, we first build an advertising image database, named ADD1000, recording 57 subjects' eye movement data of 1000 ad images. Compared to natural images, advertising images contain more artificial scenarios and show stronger persuasiveness and deliberateness, while the impact of this scene heterogeneity on visual attention is rarely studied. Moreover, text elements and picture elements express closely related semantic information to highlight product or brand in ad images, while their respective contribution to visual attention is also less known. Motivated by these, we further propose a saliency prediction model for advertising images based on text enhanced learning (TEL-SP), which comprehensively considers the interplay between textual region and pictorial region. Extensive experiments on the ADD1000 database show that the proposed model outperforms existing state-of-the-art methods.
Sixin Liao; Lili Yu; Erik D. Reichle; Jan-Louis Kruger
Using eye movements to study the reading of subtitles in video Journal Article
In: Scientific Studies of Reading, vol. 25, no. 5, pp. 417–435, 2021.
This article reports the first eye-movement experiment to examine how the presence versus absence of concurrent video content and presentation speed affect the reading of subtitles. Results indicated that participants adapted their visual routines to examine video content while simultaneously prioritizing the reading of subtitles, especially when the latter was displayed only briefly. Although decisions about when and where to move the eyes largely remained under local (cognitive) control, this control was also modulated by global task demands, suggesting an integration of local and global eye-movement control. The theoretical and pedagogical implications of these findings are discussed, and we also briefly describe a new theoretical framework for understanding all forms of multimodal reading, including the reading of subtitles in video.
Qunyue Liu; Zhipeng Zhu; Xianjun Zeng; Zhixiong Zhuo; Baojian Ye; Lei Fang; Qitang Huang; Pengcheng Lai
The impact of landscape complexity on preference ratings and eye fixation of various urban green space settings Journal Article
In: Urban Forestry and Urban Greening, vol. 66, pp. 127411, 2021.
People's perceptions on landscapes are important in the design process, and are closely associated with viewing behavior. However, little is known about the perceived landscape complexity of different urban green space settings in relation to people's preference and eye movements. This study, therefore, investigated the influence of landscape complexity on preference ratings and eye fixation of lawn, path, plaza, and waterfront settings of urban green spaces. Six images for each type of setting were selected as stimuli and further classified into three categories based on the participants' mean ratings of landscape complexity. Forty valid responses were obtained. The results indicated that participants' ratings of landscape complexity and preference were positively correlated in all types of settings. There were significant differences in fixation count and average fixation duration between images with different levels of landscape complexity in lawn and waterscape settings. Fixation count was positively correlated with landscape complexity level in all lawn, plaza and waterscape setting images. Moreover, average fixation duration was negatively correlated with landscape complexity level in all lawn and waterscape setting images. Preference ratings had no definite relationships with fixation counts and average fixation duration. The findings of this study will help designers and urban park managers to effectively incorporate public perceptions in design and decision-making process. In addition, it provides new insights into the relationship between eye movements and landscape complexity and sheds some light on the application of eye tracking technology in landscape perception studies.
Alexandre Milisavljevic; Fabrice Abate; Thomas Le Bras; Bernard Gosselin; Matei Mancas; Karine Doré-Mazars
Similarities and differences between eye and mouse dynamics during web pages exploration Journal Article
In: Frontiers in Psychology, vol. 12, pp. 554595, 2021.
The study of eye movements is a common way to non-invasively understand and analyze human behavior. However, eye-tracking techniques are very hard to scale, and require expensive equipment and extensive expertise. In the context of web browsing, these issues could be overcome by studying the link between the eye and the computer mouse. Here, we propose new analysis methods, and a more advanced characterization of this link. To this end, we recorded the eye, mouse, and scroll movements of 151 participants exploring 18 dynamic web pages while performing free viewing and visual search tasks for 20 s. The data revealed significant differences of eye, mouse, and scroll parameters over time which stabilize at the end of exploration. This suggests the existence of a task-independent relationship between eye, mouse, and scroll parameters, which are characterized by two distinct patterns: one common pattern for movement parameters and a second for dwelling/fixation parameters. Within these patterns, mouse and eye movements remained consistent with each other, while the scrolling behaved the opposite way.
Katrina Oselinsky; Ashlie Johnson; Pamela Lundeberg; Abby Johnson Holm; Megan Mueller; Dan J. Graham
GMO food labels do not affect college student food selection, despite negative attitudes towards GMOs Journal Article
In: International Journal of Environmental Research and Public Health, vol. 18, no. 4, pp. 1761, 2021.
US Public Law 114–216 dictates that food producers in the United States of America will be required to label foods containing genetically modified organisms (GMOs) starting in 2022; how-ever, there is little empirical evidence demonstrating how U.S. consumers would use food labels that indicate the presence or absence of GMOs. The aim of this two-phase study was to determine how attitudes towards GMOs relate to food choices and how labels indicating the presence or absence of GMOs differentially impact choices among college students—the age group which values transparent food labeling more than any other. Participants (n = 434) made yes/no choices for each of 64 foods. In both phases of the study, participants were randomly assigned to seeing GMO Free labels, contains GMOs labels, or no GMO labels. Across the two phases, 85% of participants reported believing that GMOs were at least somewhat dangerous to health (42% believed GMOs to be dan-gerous), yet in both studies, although eye-tracking data verified that participants attended to the GMO labels, these labels did not significantly affect food choices. Although college consumers may believe GMOs to be dangerous, their food choices do not reflect this belief.
Nadia Paraskevoudi; John S. Pezaris
Full gaze contingency provides better reading performance than head steering alone in a simulation of prosthetic vision Journal Article
In: Scientific Reports, vol. 11, pp. 11121, 2021.
The visual pathway is retinotopically organized and sensitive to gaze position, leading us to hypothesize that subjects using visual prostheses incorporating eye position would perform better on perceptual tasks than with devices that are merely head-steered. We had sighted subjects read sentences from the MNREAD corpus through a simulation of artificial vision under conditions of full gaze compensation, and head-steered viewing. With 2000 simulated phosphenes, subjects (n = 23) were immediately able to read under full gaze compensation and were assessed at an equivalent visual acuity of 1.0 logMAR, but were nearly unable to perform the task under head-steered viewing. At the largest font size tested, 1.4 logMAR, subjects read at 59 WPM (50% of normal speed) with 100% accuracy under the full-gaze condition, but at 0.7 WPM (under 1% of normal) with below 15% accuracy under head-steering. We conclude that gaze-compensated prostheses are likely to produce considerably better patient outcomes than those not incorporating eye movements.
Gordy Pleyers; Nicolas Vermeulen
How does interactivity of online media hamper ad effectiveness Journal Article
In: International Journal of Market Research, vol. 63, no. 3, pp. 335–352, 2021.
The development of the Internet has increasingly led to advertisements presented on rich and interactive websites offering users a high level of control over the contents they are exposed to—sometimes to the extent of allowing them to skip “unwanted” ads preceding the desired content. While previous studies have shown that such interactivity and control can positively impact users' subjective experience and attitude toward the advertisements, the present study examined their impact on users' attention to the ad (using eye-tracking) and actual ad effectiveness (ad memory). It relied on an experimental design allowing for comparing the effectiveness of similar ads that were presented by realistic interfaces simulating common types of online media (in addition to “traditional television” as a form of passive baseline comparison condition). The interfaces consisted of a news website (including many stimuli surrounding the ads and an “ad countdown timer,” that might detract users' attention from the ads) and YouTube (also including the “skip ad” option). Ad memory correlated positively (negatively) with gaze direction to the ad area (outside the ad area) and was particularly low when users had the opportunity to stop the ad after a few seconds. These results emphasize the scale of ad effectiveness decrease that may occur when the media interfaces offer users easy ways of avoiding video ads by gazing toward surrounding stimuli and by skipping the ads. The implications of these findings for advertisers are addressed, and it is suggested that future studies on the topic should include other measures of ad effectiveness and other distracting factors that might further detract users from online ad video content in real-life contexts.
Carlos Sillero-Rejon; Ute Leonards; Marcus R. Munafò; Craig Hedge; Janet Hoek; Benjamin Toll; Harry Gove; Isabel Willis; Rose Barry; Abi Robinson; Olivia M. Maynard
Avoidance of tobacco health warnings? An eye-tracking approach Journal Article
In: Addiction, vol. 116, no. 1, pp. 126–138, 2021.
Aims: Among three eye-tracking studies, we examined how cigarette pack features affected visual attention and self-reported avoidance of and reactance to warnings. Design: Study 1: smoking status × warning immediacy (short-term versus long-term health consequences) × warning location (top versus bottom of pack). Study 2: smoking status × warning framing (gain-framed versus loss-framed) × warning format (text-only versus pictorial). Study 3: smoking status × warning severity (highly severe versus moderately severe consequences of smoking). Setting: University of Bristol, UK, eye-tracking laboratory. Participants: Study 1: non-smokers (n = 25), weekly smokers (n = 25) and daily smokers (n = 25). Study 2: non-smokers (n = 37), smokers contemplating quitting (n = 37) and smokers not contemplating quitting (n = 43). Study 3: non-smokers (n = 27), weekly smokers (n = 26) and daily smokers (n = 26). Measurements: For all studies: visual attention, measured as the ratio of the number of fixations to the warning versus the branding, self-reported predicted avoidance of and reactance to warnings and for study 3, effect of warning on quitting motivation. Findings: Study 1: greater self-reported avoidance [mean difference (MD) = 1.14; 95% confidence interval (CI) = 0.94, 1.35, P < 0.001, $eta$p2 = 0.64] and visual attention (MD = 0.89, 95% CI = 0.09, 1.68
María Silva-Gago; Flora Ioannidou; Annapaola Fedato; Timothy Hodgson; Emiliano Bruner
Visual attention and cognitive archaeology: An eye-tracking study of palaeolithic stone tools Journal Article
In: Perception, pp. 1–22, 2021.
The study of lithic technology can provide information on human cultural evolution. This article aims to analyse visual behaviour associated with the exploration of ancient stone artefacts and how this relates to perceptual mechanisms in humans. In Experiment 1, we used eye tracking to record patterns of eye fixations while participants viewed images of stone tools, including examples of worked pebbles and handaxes. The results showed that the focus of gaze was directed more towards the upper regions of worked pebbles and on the basal areas for handaxes. Knapped surfaces also attracted more fixation than natural cortex for both tool types. Fixation distribution was different to that predicted by models that calculate visual salience. Experiment 2 was an online study using a mouse-click attention tracking technique and included images of unworked pebbles and ‘mixed' images combining the handaxe's outline with the pebble's unworked texture. The pattern of clicks corresponded to that revealed using eye tracking and there were differences between tools and other images. Overall, the findings suggest that visual exploration is directed towards functional aspects of tools. Studies of visual attention and exploration can supply useful information to inform understanding of human cognitive evolution and tool use.
David Souto; Olivia Marsh; Claire Hutchinson; Simon Judge; Kevin B. Paterson
Cognitive plasticity induced by gaze-control technology: Gaze-typing improves performance in the antisaccade task Journal Article
In: Computers in Human Behavior, vol. 122, pp. 106831, 2021.
The last twenty years have seen the development of gaze-controlled computer interfaces for augmentative communication and other assistive technology applications. In many applications, the user needs to look at symbols on a virtual on-screen keyboard and maintain gaze to make a selection. Executive control is essential to learning to use gaze-control, affecting the uptake of the technology. Specifically, the user of a gaze-controlled interface must suppress looking for its own sake, the so-called “Midas touch” problem. In a pre-registered study (https://osf.io/2mak4), we tested whether gaze-typing performance depends on executive control and whether learning-dependent plasticity leads to improved executive control as measured using the antisaccade task. Forty-two university students were recruited as participants. After five 30-min training sessions, we found shorter antisaccade latencies in a gaze-control compared to a mouse-control group, and similar error-rates. Subjective workload ratings were also similar across groups, indicating the task in both groups was matched for difficulty. These findings suggest that executive control contributes to gaze-typing performance and leads to learning-induced plasticity.
Jennifer Sudkamp; Mateusz Bocian; David Souto
The role of eye movements in perceiving vehicle speed and time-to-arrival at the roadside Journal Article
In: Scientific Reports, vol. 11, pp. 23312, 2021.
To avoid collisions, pedestrians depend on their ability to perceive and interpret the visual motion of other road users. Eye movements influence motion perception, yet pedestrians' gaze behavior has been little investigated. In the present study, we ask whether observers sample visual information differently when making two types of judgements based on the same virtual road-crossing scenario and to which extent spontaneous gaze behavior affects those judgements. Participants performed in succession a speed and a time-to-arrival two-interval discrimination task on the same simple traffic scenario—a car approaching at a constant speed (varying from 10 to 90 km/h) on a single-lane road. On average, observers were able to discriminate vehicle speeds of around 18 km/h and times-to-arrival of 0.7 s. In both tasks, observers placed their gaze closely towards the center of the vehicle's front plane while pursuing the vehicle. Other areas of the visual scene were sampled infrequently. No differences were found in the average gaze behavior between the two tasks and a pattern classifier (Support Vector Machine), trained on trial-level gaze patterns, failed to reliably classify the task from the spontaneous eye movements it elicited. Saccadic gaze behavior could predict time-to-arrival discrimination performance, demonstrating the relevance of gaze behavior for perceptual sensitivity in road-crossing.
Chaitanya Thammineni; Hemanth Manjunatha; Ehsan T. Esfahani
Selective eye-gaze augmentation to enhance imitation learning in Atari games Journal Article
In: Neural Computing and Applications, 2021.
This paper presents the selective use of eye-gaze information in learning human actions in Atari games. Extensive evidence suggests that our eye movements convey a wealth of information about the direction of our attention and mental states and encode the information necessary to complete a task. Based on this evidence, we hypothesize that selective use of eye-gaze, as a clue for attention direction, will enhance the learning from demonstration. For this purpose, we propose a selective eye-gaze augmentation (SEA) network that learns when to use the eye-gaze information. The proposed network architecture consists of three sub-networks: gaze prediction, gating, and action prediction network. Using the prior 4 game frames, a gaze map is predicted by the gaze prediction network, which is used for augmenting the input frame. The gating network will determine whether the predicted gaze map should be used in learning and is fed to the final network to predict the action at the current frame. To validate this approach, we use publicly available Atari Human Eye-Tracking And Demonstration (Atari-HEAD) dataset consists of 20 Atari games with 28 million human demonstrations and 328 million eye-gazes (over game frames) collected from four subjects. We demonstrate the efficacy of selective eye-gaze augmentation compared to the state-of-the-art Attention Guided Imitation Learning (AGIL) and Behavior Cloning (BC). The results indicate that the selective augmentation approach (the SEA network) performs significantly better than the AGIL and BC. Moreover, to demonstrate the significance of selective use of gaze through the gating network, we compare our approach with the random selection of the gaze. Even in this case, the SEA network performs significantly better, validating the advantage of selectively using the gaze in demonstration learning.
Chiao I. Tseng; Jochen Laubrock; John A. Bateman
The impact of multimodal cohesion on attention and interpretation in film Journal Article
In: Discourse, Context and Media, vol. 44, pp. 100544, 2021.
This article presents results of an exploratory investigation combining multimodal cohesion analysis and eye-tracking studies. Multimodal cohesion, as a tool of multimodal discourse analysis, goes beyond linguistic cohesive mechanisms to enable the construction of cross-modal discourse structures that systematically relate technical details of audio, visual and verbal modalities. Patterns of multimodal cohesion from these discourse structures were used to design eye-tracking experiments and questionnaires in order to empirically investigate how auditory and visual cohesive cues affect attention and comprehension. We argue that the cross-modal structures of cohesion revealed by our method offer a strong methodology for addressing empirical questions concerning viewers' comprehension of narrative settings and the comparative salience of visual, verbal and audio cues. Analyses are presented of the beginning of Hitchcock's The Birds (1963) and a sketch from Monty Python filmed in 1971. Our approach balances the narrative-based issue of how narrative elements in film guide meaning interpretation and the recipient-based question of where a film viewer's attention is directed during viewing and how this affects comprehension.
Xiangling Wang; Tingting Wang; Ricardo Muñoz Martın; Yanfang Jia
Investigating usability in postediting neural machine translation: Evidence from translation trainees' self-perception and performance Journal Article
In: Across Languages and Cultures, vol. 22, no. 1, pp. 100–123, 2021.
This is a report on an empirical study on the usability for translation trainees of neural machine translation systems when post-editing (MTPE). Sixty Chinese translation trainees completed a questionnaire on their perceptions of MTPE's usability. Fifty of them later performed both a post-editing task and a regular translation task, designed to examine MTPE's usability by comparing their performance in terms of text processing speed, effort, and translation quality. Contrasting data collected by the questionnaire, keylogging, eyetracking and retrospective reports we found that, compared with regular, unaided translation, MTPE's usefulness in performance was remarkable: (1) it increased translation trainees' text processing speed and also improved their translation quality; (2) MTPE's ease of use in performance was partly proved in that it significantly reduced informants' effort as measured by (a) fixation duration and fixation counts; (b) total task time; and (c) the number of insertion keystrokes and total keystrokes. However, (3) translation trainees generally perceived MTPE to be useful to increase productivity, but they were skeptical about its use to improve quality. They were neutral towards the ease of use of MTPE.
Lauren Williams; Ann Carrigan; William Auffermann; Megan Mills; Anina Rich; Joann Elmore; Trafton Drew
The invisible breast cancer: Experience does not protect against inattentional blindness to clinically relevant findings in radiology Journal Article
In: Psychonomic Bulletin & Review, vol. 28, no. 2, pp. 503–511, 2021.
Retrospectively obvious events are frequently missed when attention is engaged in another task—a phenomenon known as inattentional blindness. Although the task characteristics that predict inattentional blindness rates are relatively well understood, the observer characteristics that predict inattentional blindness rates are largely unknown. Previously, expert radiologists showed a surprising rate of inattentional blindness to a gorilla photoshopped into a CT scan during lung-cancer screening. However, inattentional blindness rates were higher for a group of naïve observers performing the same task, suggesting that perceptual expertise may provide protection against inattentional blindness. Here, we tested whether expertise in radiology predicts inattentional blindness rates for unexpected abnormalities that were clinically relevant. Fifty radiologists evaluated CT scans for lung cancer. The final case contained a large (9.1 cm) breast mass and lymphadenopathy. When their attention was focused on searching for lung nodules, 66% of radiologists did not detect breast cancer and 30% did not detect lymphadenopathy. In contrast, only 3% and 10% of radiologists (N = 30), respectively, missed these abnormalities in a follow-up study when searching for a broader range of abnormalities. Neither experience, primary task performance, nor search behavior predicted which radiologists missed the unexpected abnormalities. These findings suggest perceptual expertise does not protect against inattentional blindness, even for unexpected stimuli that are within the domain of expertise.
Jia-Qiong Xie; Detlef H. Rost; Fu-Xing Wang; Jin-Liang Wang; Rebecca L. Monk
The association between excessive social media use and distraction: An eye movement tracking study Journal Article
In: Information and Management, vol. 58, no. 2, pp. 1–12, 2021.
Drawing on scan-and-shift hypothesis and scattered attention hypothesis, this article attempted to explore the association between excessive social media use (ESMU) and distraction from an information engagement perspective. In study 1, the results, based on 743 questionnaires completed by Chinese college students, showed that ESMU is related to distraction in daily life. In Study 2, eye-tracking technology was used to investigate the distraction and performance of excessive microblog users when performing the modified Stroop task. The results showed that excessive microblog users had difficulties suppressing interference information than non-microblog users, resulting in poor performance. Theoretical and practical implications are discussed.
Qiang Yang; Yuanjian Zhou; Yushi Jiang; Jiale Huo
How to overcome online banner blindness? A study on the effects of creativity Journal Article
In: Journal of Research in Interactive Marketing, vol. 15, no. 2, pp. 223–242, 2021.
Purpose: This study aims to explore whether creativity can overcome banner blindness in the viewing of web pages and demonstrate how visual saliency and banner-page congruity constitute the boundary conditions for creativity to improve memory for banner ads. Design/methodology/approach: Three studies were conducted to understand the influence of advertising creativity and banner blindness on recognition of banner ads, which were assessed using questionnaires and bias adjustment. The roles of online user tasks (goal-directed vs free-viewing), visual saliency (high vs low) and banner-page congruity (congruent vs incongruent) were considered. Findings: The findings suggest that creativity alone is not sufficient to overcome the banner blindness phenomenon. Specifically, in goal-directed tasks, the effect of creativity on recognition of banner ads is dependent on banner ads' visual saliency and banner-page congruity. Creative banners are high on visual saliency, and banner-page congruity yields higher recognition rates. Practical implications: Creativity matters for attracting consumer attention. And in a web page context, where banner blindness prevails, the design of banners becomes even more important in this respect. Given the prominence of banners in online marketing, it is also necessary to tap the potential of creativity of banner ads. Originality/value: First, focusing on how creativity influences memory for banner ads across distinct online user tasks not just provides promising theoretical insight on the tackling of banner blindness but also enriches research on advertising creativity. Second, contrary to the popular belief of extant literature, the findings suggest that, in a web page context, improvement in memory for banner ads via creativity is subject to certain boundary conditions. Third, a computational neuroscience software program was used in this study to assess the visual saliency of banner ads, whereas signal detection theory was used for adjustment of recognition scores. This interdisciplinary examination combining the two perspectives sheds new light on online advertising research.
Nicole H. Yuen; Fred Tam; Nathan W. Churchill; Tom A. Schweizer; Simon J. Graham
Driving with distraction: Measuring brain activity and oculomotor behavior using fMRI and eye-tracking Journal Article
In: Frontiers in Human Neuroscience, vol. 15, pp. 1–20, 2021.
Introduction: Driving motor vehicles is a complex task that depends heavily on how visual stimuli are received and subsequently processed by the brain. The potential impact of distraction on driving performance is well known and poses a safety concern – especially for individuals with cognitive impairments who may be clinically unfit to drive. The present study is the first to combine functional magnetic resonance imaging (fMRI) and eye-tracking during simulated driving with distraction, providing oculomotor metrics to enhance scientific understanding of the brain activity that supports driving performance. Materials and Methods: As initial work, twelve healthy young, right-handed participants performed turns ranging in complexity, including simple right and left turns without oncoming traffic, and left turns with oncoming traffic. Distraction was introduced as an auditory task during straight driving, and during left turns with oncoming traffic. Eye-tracking data were recorded during fMRI to characterize fixations, saccades, pupil diameter and blink rate. Results: Brain activation maps for right turns, left turns without oncoming traffic, left turns with oncoming traffic, and the distraction conditions were largely consistent with previous literature reporting the neural correlates of simulated driving. When the effects of distraction were evaluated for left turns with oncoming traffic, increased activation was observed in areas involved in executive function (e.g., middle and inferior frontal gyri) as well as decreased activation in the posterior brain (e.g., middle and superior occipital gyri). Whereas driving performance remained mostly unchanged (e.g., turn speed, time to turn, collisions), the oculomotor measures showed that distraction resulted in more consistent gaze at oncoming traffic in a small area of the visual scene; less time spent gazing at off-road targets (e.g., speedometer, rear-view mirror); more time spent performing saccadic eye movements; and decreased blink rate. Conclusion: Oculomotor behavior modulated with driving task complexity and distraction in a manner consistent with the brain activation features revealed by fMRI. The results suggest that eye-tracking technology should be included in future fMRI studies of simulated driving behavior in targeted populations, such as the elderly and individuals with cognitive complaints – ultimately toward developing better technology to assess and enhance fitness to drive.
Luming Zhang; Xiaoqin Zhang; Mingliang Xu; Ling Shao
Massive-scale aerial photo categorization by cross-resolution visual perception enhancement Journal Article
In: IEEE Transactions on Neural Networks and Learning Systems, pp. 1–14, 2021.
Categorizing aerial photographs with varied weather/lighting conditions and sophisticated geomorphic factors is a key module in autonomous navigation, environmental evaluation, and so on. Previous image recognizers cannot fulfill this task due to three challenges: 1) localizing visually/semantically salient regions within each aerial photograph in a weakly annotated context due to the unaffordable human resources required for pixel-level annotation; 2) aerial photographs are generally with multiple informative attributes (e.g., clarity and reflectivity), and we have to encode them for better aerial photograph modeling; and 3) designing a cross-domain knowledge transferal module to enhance aerial photograph perception since multiresolution aerial photographs are taken asynchronistically and are mutually complementary. To handle the above problems, we propose to optimize aerial photograph's feature learning by leveraging the low-resolution spatial composition to enhance the deep learning of perceptual features with a high resolution. More specifically, we first extract many BING-based object patches (Cheng et al., 2014) from each aerial photograph. A weakly supervised ranking algorithm selects a few semantically salient ones by seamlessly incorporating multiple aerial photograph attributes. Toward an interpretable aerial photograph recognizer indicative to human visual perception, we construct a gaze shifting path (GSP) by linking the top-ranking object patches and, subsequently, derive the deep GSP feature. Finally, a cross-domain multilabel SVM is formulated to categorize each aerial photograph. It leverages the global feature from low-resolution counterparts to optimize the deep GSP feature from a high-resolution aerial photograph. Comparative results on our compiled million-scale aerial photograph set have demonstrated the competitiveness of our approach. Besides, the eye-tracking experiment has shown that our ranking-based GSPs are over 92% consistent with the real human gaze shifting sequences.
Xinru Zhang; Zhongling Pi; Chenyu Li; Weiping Hu
Intrinsic motivation enhances online group creativity via promoting members' effort, not interaction Journal Article
In: British Journal of Educational Technology, vol. 52, no. 2, pp. 606–618, 2021.
Intrinsic motivation is seen as the principal source of vitality in educational settings. This study examined whether intrinsic motivation promoted online group creativity and tested a cognitive mechanism that might explain this effect. University students (N = 72; 61 women) who volunteered to participate were asked to fulfill a creative task with a peer using online software. The peer was actually a fake participant who was programed to send prepared answers in sequence. Ratings of creativity (fluency, flexibility and originality) and eye movement data (focus on own vs. peer's ideas on the screen) were used to compare students who were induced to have high intrinsic motivation and those induced to have low intrinsic motivation. Results showed that compared to participants with low intrinsic motivation, those with high intrinsic motivation showed higher fluency and flexibility on the creative task and spent a larger percentage of time looking at their own ideas on the screen. The two groups did not differ in how much they looked at the peer's ideas. In addition, students' percentage dwell time on their own ideas mediated the beneficial effect of intrinsic motivation on idea fluency. These results suggest that although intrinsic motivation could enhance the fluency of creative ideas in an online group, it does not necessarily promote interaction among group members. Given the importance of interaction in online group setting, findings of this study suggest that in addition to enhancing intrinsic motivation, other measures should be taken to promote the interaction behavior in online groups. Practitioner Notes What is already known about this topic The generation of creative ideas in group settings calls for both individual effort and cognitive stimulation from other members. Intrinsic motivation has been shown to foster creativity in face-to-face groups, which is primarily due the promotion of individual effort. In online group settings, students' creativity tends to rely on intrinsic motivation because the extrinsic motivation typically provided by teachers' supervision and peer pressure in face-to-face settings is minimized online. What this paper adds Creative performance in online groups benefits from intrinsic motivation. Intrinsic motivation promotes creativity through an individual's own cognitive effort instead of interaction among members. Implications for practice and/or policy Improving students' intrinsic motivation is an effective way to promote creativity in online groups. Teachers should take additional steps to encourage students to interact more with each other in online groups.
Junming Zheng; Muhammad Waqqas Khan Tarin; Denghui Jiang; Min Li; Jing Ye; Lingyan Chen; Tianyou He; Yushan Zheng
Which ornamental features of bamboo plants will attract the people most? Journal Article
In: Urban Forestry and Urban Greening, vol. 61, pp. 127101, 2021.
Plant structure and architecture have a significant influence on how people interpret them. Bamboo plants have highly ornamental attributes, but the traits that attract people the most are still unknown. Therefore, to assess the people's preference for ornamental features of bamboo plants, eye-tracking measures (fixation count, percent of dwell time, pupil size, and saccade amplitude) and a questionnaire survey about subjective preference were conducted by ninety college students as the participants. The result showed that subjective ratings of stem color, leaf stripes, and stem stripes showed a significant positive correlation with the fixation count. The pupil size and saccade amplitude of different ornamental features were not correlated with the subjective ratings. According to random forest model, fixation count was the most influential aspect affecting subjective ratings. Based on integrated eye-tracking measures and subjective ratings, we conclude that people prefer the ornamental features like green stem, green stem with irregular yellow stripes or yellow stem with narrow green stripes, leaves with less number of stripes, normal stem, and tree. In addition, people prefer natural traits, for instance, green stem, normal stem, and tree, related to latent conscious belief and evolutionary adaptation. Abnormal traits, such as leaf stripes and stem stripes attract people's visual attention and interests, making the fixation count and increasing the percentage of dwell time. This study has significant implications for landscape experts in the design and maintenance of ornamental bamboo plantations in China as well as in other areas of the world.
Francesca Ales; Luciano Giromini; Lara Warmelink; Megan Polden; Thomas Wilcockson; Claire Kelly; Christina Winters; Alessandro Zennaro; Trevor Crawford
An eye tracking study on feigned schizophrenia Journal Article
In: Psychological Injury and Law, vol. 14, no. 3, pp. 213–226, 2021.
Research on malingering detection has not yet taken full advantage of eye tracking technology. In particular, while several studies indicate that patients with schizophrenia behave notably differently from controls on specific oculomotor tasks, no study has yet investigated whether experimental participants instructed to feign could reproduce those behaviors, if coached to do so. Due to the automatic nature of eye movements, we anticipated that eye tracking analyses would help detect feigned schizophrenic problems. To test this hypothesis, we recorded the eye movements of 83 adult UK volunteers, and tested whether eye movements of healthy volunteers instructed to feign schizophrenia (n = 43) would differ from those of honest controls (n = 40), while engaging in smooth pursuit and pro- and anti-saccade tasks. Additionally, results from our investigation were also compared against previously published data observed in patients with schizophrenia performing similar oculomotor tasks. Data analysis showed that eye movements of experimental participants instructed to feign (a) only partially differed from those of controls and (b) did not closely resemble those from patients with schizophrenia reported in previously published papers. Taken together, these results suggest that examination of eye movements does have the potential to help detecting feigned schizophrenia.
Thomas A. Busey; Nicholas Heise; R. Austin Hicklin; Bradford T. Ulery; Jo Ann Buscaglia
Characterizing missed identifications and errors in latent fingerprint comparisons using eye-tracking data Journal Article
In: PLoS ONE, vol. 16, no. 5, pp. e0251674, 2021.
Latent fingerprint examiners sometimes come to different conclusions when comparing fingerprints, and eye-gaze behavior may help explain these outcomes. missed identifications (missed IDs) are inconclusive, exclusion, or No Value determinations reached when the consensus of other examiners is an identification. To determine the relation between examiner behavior and missed IDs, we collected eye-gaze data from 121 latent print examiners as they completed a total 1444 difficult (latent-exemplar) comparisons. We extracted metrics from the gaze data that serve as proxies for underlying perceptual and cognitive capacities. We used these metrics to characterize potential mechanisms of missed IDs: Cursory Comparison and Mislocalization. We find that missed IDs are associated with shorter comparison times, fewer regions visited, and fewer attempted correspondences between the compared images. Latent print comparisons resulting in erroneous exclusions (a subset of missed IDs) are also more likely to have fixations in different regions and less accurate correspondence attempts than those comparisons resulting in identifications. We also use our derived metrics to describe one atypical examiner who made six erroneous identifications, four of which were on comparisons intended to be straightforward exclusions. The present work helps identify the degree to which missed IDs can be explained using eye-gaze behavior, and the extent to which missed IDs depend on cognitive and decision-making factors outside the domain of eye-tracking methodologies.
Matthew R. Cavanaugh; Lisa M. Blanchard; Michael McDermott; Byron L. Lam; Madhura Tamhankar; Steven E. Feldon
Efficacy of visual retraining in the hemianopic field after stroke: Results of a randomized clinical trial Journal Article
In: Ophthalmology, vol. 128, no. 7, pp. 1091–1101, 2021.
Purpose: To evaluate the efficacy of motion discrimination training as a potential therapy for stroke-induced hemianopic visual field defects. Design: Clinical trial. Participants: Forty-eight patients with stroke-induced homonymous hemianopia (HH) were randomized into 2 training arms: intervention and control. Patients were between 21 and 75 years of age and showed no ocular issues at presentation. Methods: Patients were trained on a motion discrimination task previously evidenced to reduce visual field deficits, but not in a randomized clinical trial. Patients were randomized with equal allocation to receive training in either their sighted or deficit visual fields. Training was performed at home for 6 months, consisting of repeated visual discriminations at a single location for 20 to 30 minutes daily. Study staff and patients were masked to training type. Testing before and after training was identical, consisting of Humphrey visual fields (Carl Zeiss Meditech), macular integrity assessment perimetry, OCT, motion discrimination performance, and visual quality-of-life questionnaires. Main Outcome Measures: Primary outcome measures were changes in perimetric mean deviation (PMD) on Humphrey Visual Field Analyzer in both eyes. Results: Mean PMDs improved over 6 months in deficit-trained patients (mean change in the right eye, 0.58 dB; 95% confidence interval, 0.07–1.08 dB; mean change in the left eye 0.84 dB; 95% confidence interval, 0.22–1.47 dB). No improvement was observed in sighted-trained patients (mean change in the right eye, 0.12 dB; 95% confidence interval, –0.38 to 0.62 dB; mean change in the left eye, 0.10 dB; 95% confidence interval, –0.52 to 0.72 dB). However, no significant differences were found between the alternative training methods (right eye
What does professional experience have to offer? An eyetracking study of sight interpreting/translation behaviour Journal Article
In: Translation, Cognition and Behavior, vol. 4, no. 1, pp. 47–74, 2021.
This study investigated the impact of professional experience on the process and product of sight interpreting/translation (SiT). Seventeen experienced interpreters, with at least 150 days' professional experience, and 18 interpreting students were recruited to conduct three tasks: silent reading, reading aloud, and SiT. All participants had similar interpreter training backgrounds. The data of the SiT task are reported here, with two experienced interpreters (both AIIC members) assessing the participants' interpretations on accuracy and style, which includes fluency and other paralinguistic performance. The findings show that professional experience contributed to higher accuracy, although there was no between-group difference in the mean score on style, overall task time, length of the SiT output, and mean fixation duration of each stage of reading. The experienced practitioners exhibited more varied approaches at the beginning of the SiT task, with some biding their time longer than the others before oral production started, but quality was not affected. Moving along, the practitioners showed better language flexibility in that their renditions were faster, steadier, and less disrupted by pauses and the need to read further to maintain the flow of interpretation.
Francisco M. Costela; Stephanie M. Reeves; Russell L. Woods
The effect of zoom magnification and large display on video comprehension in individuals with central vision loss Journal Article
In: Translational Vision Science & Technology, vol. 10, no. 8, pp. 30, 2021.
Purpose: A larger display at the same viewing distance provides relative-size magnification for individuals with central vision loss (CVL). However, the resulting large visible area of the display is expected to result in more head rotation, which may cause discom-fort. We created a zoom magnification technique that placed the center of interest (COI) in the center of the display to reduce the need for head rotation. Methods: In a 2 × 2 within-subject study design, 23 participants with CVL viewed video clips from 1.5 m (4.9 feet) shown with or without zoom magnification, and with a large (208 cm/82” diagonal, 69°) or a typical (84 cm/33”, 31°) screen. Head position was tracked and a custom questionnaire was used to measure discomfort. Results: Video comprehension was better with the large screen (P < 0.001) and slightly worse with zoom magnification (P = 0.03). Oddly, head movements did not vary with screen size (P = 0.63), yet were greater with zoom magnification (P = 0.001). This finding was unexpected, because the COI remains in the center with zoom magnification, but moves widely with a large screen and no magnification. Conclusions: This initial attempt to implement the zoom magnification method had flaws that may have decreased its effectiveness. In the future, we propose alternative implementations for zoom magnification, such as variable magnification. Translational Relevance: We present the first explicit demonstration that relative-size magnification improves the video comprehension of people with CVL when viewing video.
Francisco M. Costela; Stephanie M. Reeves; Russell L. Woods
An implementation of Bubble Magnification did not improve the video comprehension of individuals with central vision loss Journal Article
In: Ophthalmic and Physiological Optics, vol. 41, no. 4, pp. 842–852, 2021.
Purpose: People with central vision loss (CVL) watch television, videos and movies, but often report difficulty and have reduced video comprehension. An approach to assist viewing videos is electronic magnification of the video itself, such as Bubble Magnification. Methods: We created a Bubble Magnification technique that displayed a magnified segment around the centre of interest (COI) as determined by the gaze of participants with normal vision. The 15 participants with CVL viewed video clips shown with 2× and 3× Bubble Magnification, and unedited. We measured video comprehension and gaze coherence. Results: Video comprehension was significantly worse with both 2× (p = 0.01) and 3× Bubble Magnification (p < 0.001) than the unedited video. There was no difference in gaze coherence across conditions (p ≥ 0.58). This was unexpected because we expected a benefit in both video comprehension and gaze coherence. This initial attempt to implement the Bubble Magnification method had flaws that probably reduced its effectiveness. Conclusions: In the future, we propose alternative implementations of Bubble Magnification, such as variable magnification and bubble size. This study is a first step in the development of an intelligent-magnification approach to providing a vision rehabilitation aid to assist people with CVL.
Y. B. Eisma; A. Reiff; L. Kooijman; D. Dodou; J. C. F. Winter
External human-machine interfaces: Effects of message perspective Journal Article
In: Transportation Research Part F: Traffic Psychology and Behaviour, vol. 78, pp. 30–41, 2021.
Future automated vehicles may be equipped with external Human-Machine Interfaces (eHMIs). Currently, little is known about the effect of the perspective of the eHMI message on crossing decisions of pedestrians. We performed an experiment to examine the effects of images depicting eHMI messages of different perspectives (egocentric from the pedestrian's point of view: WALK, DON'T WALK, allocentric: BRAKING, DRIVING, and ambiguous: GO, STOP) on participants' (N = 103) crossing decisions, response times, and eye movements. Considering that crossing the road can be cognitively demanding, we added a memory task in two-thirds of the trials. The results showed that egocentric messages yielded higher subjective clarity ratings than the other messages as well as higher objective clarity scores (i.e., more uniform crossing decisions) and faster response times than the allocentric BRAKING and the ambiguous STOP. When participants were subjected to the memory task, pupil diameter increased, and crossing decisions were reached faster as compared to trials without memory task. Regarding the ambiguous messages, most participants crossed for the GO message and did not cross for the STOP message, which points towards an egocentric perspective taken by the participant. More lengthy text messages (e.g., DON'T WALK) yielded a higher number of saccades but did not cause slower response times. We conclude that pedestrians find egocentric eHMI messages clearer than allocentric ones, and take an egocentric perspective if the message is ambiguous. Our results may have important implications, as the consensus among eHMI researchers appears to be that egocentric text-based eHMIs should not be used in traffic.
Yke Bauke Eisma; Clark Borst; René Paassen; Joost Winter
Augmented visual feedback: Cure or distraction? Journal Article
In: Human Factors, vol. 63, no. 7, pp. 1156–1168, 2021.
Objective: The aim of the study was to investigate the effect of augmented feedback on participants' workload, performance, and distribution of visual attention. Background: An important question in human–machine interface design is whether the operator should be provided with direct solutions. We focused on the solution space diagram (SSD), a type of augmented feedback that shows directly whether two aircraft are on conflicting trajectories. Method: One group of novices (n = 13) completed conflict detection tasks with SSD, whereas a second group (n = 11) performed the same tasks without SSD. Eye-tracking was used to measure visual attention distribution. Results: The mean self-reported task difficulty was substantially lower for the SSD group compared to the No-SSD group. The SSD group had a better conflict detection rate than the No-SSD group, whereas false-positive rates were equivalent. High false-positive rates for some scenarios were attributed to participants who misunderstood the SSD. Compared to the No-SSD group, the SSD group spent a large proportion of their time looking at the SSD aircraft while looking less at other areas of interest. Conclusion: Augmented feedback makes the task subjectively easier but has side effects related to visual tunneling and misunderstanding. Application: Caution should be exercised when human operators are expected to reproduce task solutions that are provided by augmented visual feedback.
Iain Fraser; Kelvin Balcombe; Louis Williams; Eugene McSorley
Preference stability in discrete choice experiments. Some evidence using eye-tracking Journal Article
In: Journal of Behavioral and Experimental Economics, vol. 94, pp. 101753, 2021.
We investigate the relationship between the extent of visual attention and preference stability in a discrete choice experiment using eye-tracking to investigate country of origin information for meat in the UK. By preference stability, we mean the extent to which choice task responses differ for an identical set of tasks for an individual. Our results reveal that the degree of visual attention, counter to our initial expectations, is positively related to the degree of preference instability. This means that preference instability does not necessarily indicate low levels of respondent engagement. We also find that those respondents' exhibiting preference instability do not substantively differ from the rest of the sample in terms of their underlying preferences. Rather, these respondents spend longer looking at tasks that are similar in terms of utility, suggesting these respondents find these choices more difficult.
Agostino Gibaldi; Silvio P. Sabatini
The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis Journal Article
In: Behavior Research Methods, vol. 53, no. 1, pp. 167–187, 2021.
Saccades are rapid ballistic eye movements that humans make to direct the fovea to an object of interest. Their kinematics is well defined, showing regular relationships between amplitude, duration, and velocity: the saccadic 'main sequence'. Deviations of eye movements from the main sequence can be used as markers of specific neurological disorders. Despite its significance, there is no general methodological consensus for reliable and repeatable measurements of the main sequence. In this work, we propose a novel approach for standard indicators of oculomotor performance. The obtained measurements are characterized by high repeatability, allowing for fine assessments of inter- and intra-subject variability, and inter-ocular differences. The designed experimental procedure is natural and non-fatiguing, thus it is well suited for fragile or non-collaborative subjects like neurological patients and infants. The method has been released as a software toolbox for public use. This framework lays the foundation for a normative dataset of healthy oculomotor performance for the assessment of oculomotor dysfunctions.
Hao Gong; Scott S. Hsieh; David R. Holmes; David A. Cook; Akitoshi Inoue; David J. Bartlett; Francis Baffour; Hiroaki Takahashi; Shuai Leng; Lifeng Yu; Cynthia H. McCollough; Joel G. Fletcher
An interactive eye-tracking system for measuring radiologists' visual fixations in volumetric CT images: Implementation and initial eye-tracking accuracy validation Journal Article
In: Medical Physics, vol. 48, no. 11, pp. 6710–6723, 2021.
Purpose: Eye-tracking approaches have been used to understand the visual search process in radiology. However, previous eye-tracking work in computer tomography (CT) has been limited largely to single cross-sectional images or video playback of the reconstructed volume, which do not accurately reflect radiologists' visual search activities and their interactivity with three-dimensional image data at a computer workstation (e.g., scroll, pan, and zoom) for visual evaluation of diagnostic imaging targets. We have developed a platform that integrates eye-tracking hardware with in-house-developed reader workstation software to allow monitoring of the visual search process and reader-image interactions in clinically relevant reader tasks. The purpose of this work is to validate the spatial accuracy of eye-tracking data using this platform for different eye-tracking data acquisition modes. Methods: An eye-tracker was integrated with a previously developed workstation designed for reader performance studies. The integrated system captured real-time eye movement and workstation events at 1000 Hz sampling frequency. The eye-tracker was operated either in head-stabilized mode or in free-movement mode. In head-stabilized mode, the reader positioned their head on a manufacturer-provided chinrest. In free-movement mode, a biofeedback tool emitted an audio cue when the head position was outside the data collection range (general biofeedback) or outside a narrower range of positions near the calibration position (strict biofeedback). Four radiologists and one resident were invited to participate in three studies to determine eye-tracking spatial accuracy under three constraint conditions: head-stabilized mode (i.e., with use of a chin rest), free movement with general biofeedback, and free movement with strict biofeedback. Study 1 evaluated the impact of head stabilization versus general or strict biofeedback using a cross-hair target prior to the integration of the eye-tracker with the image viewing workstation. In Study 2, after integration of the eye-tracker and reader workstation, readers were asked to fixate on targets that were randomly distributed within a volumetric digital phantom. In Study 3, readers used the integrated system to scroll through volumetric patient CT angiographic images while fixating on the centerline of designated blood vessels (from the left coronary artery to dorsalis pedis artery). Spatial accuracy was quantified as the offset between the center of the intended target and the detected fixation using units of image pixels and the degree of visual angle. Results: The three head position constraint conditions yielded comparable accuracy in the studies using digital phantoms. For Study 1 involving the digital crosshairs, the median ± the standard deviation of offset values among readers were 15.2 ± 7.0 image pixels with the chinrest, 14.2 ± 3.6 image pixels with strict biofeedback, and 19.1 ± 6.5 image pixels with general biofeedback. For Study 2 using the random dot phantom, the median ± standard deviation offset values were 16.7 ± 28.8 pixels with use of a chinrest, 16.5 ± 24.6 pixels using strict biofeedback, and 18.0 ± 22.4 pixels using general biofeedback, which translated to a visual angle of about 0.8° for all three conditions. We found no obvious association between eye-tracking accuracy and target size or view time. In Study 3 viewing patient images, use of the chinrest and strict biofeedback demonstrated comparable accuracy, while the use of general biofeedback demonstrated a slightly worse accuracy. The median ± standard deviation of offset values were 14.8 ± 11.4 pixels with use of a chinrest, 21.0 ± 16.2 pixels using strict biofeedback, and 29.7 ± 20.9 image pixels using general biofeedback. These corresponded to visual angles ranging from 0.7° to 1.3°. Conclusions: An integrated eye-tracker system to assess reader eye movement and interactive viewing in relation to imaging targets demonstrated reasonable spatial accuracy for assessment of visual fixation. The head-free movement condition with audio biofeedback performed similarly to head-stabilized mode.
Hanna Brinkmann; Louis Williams; Raphael Rosenberg; Eugene McSorley
Does 'action viewing' really exist? Perceived dynamism and viewing behaviour Journal Article
In: Art and Perception, vol. 8, no. 1, pp. 27–48, 2020.
Throughout the 20th century, there have been many different forms of abstract painting. While works by some artists, e.g., Piet Mondrian, are usually described as static, others are described as dynamic, such as Jackson Pollock's 'action paintings'. Art historians have assumed that beholders not only conceptualise such differences in depicted dynamics but also mirror these in their viewing behaviour. In an interdisciplinary eye-tracking study, we tested this concept through investigating both the localisation of fixations (polyfocal viewing) and the average duration of fixations as well as saccade velocity, duration and path curvature. We showed 30 different abstract paintings to 40 participants - 20 laypeople and 20 experts (art students) - and used self-reporting to investigate the perceived dynamism of each painting and its relationship with (a) the average number and duration of fixations, (b) the average number, duration and velocity of saccades as well as the amplitude and curvature area of saccade paths, and (c) pleasantness and familiarity ratings. We found that the average number of fixations and saccades, saccade velocity, and pleasantness ratings increase with an increase in perceived dynamism ratings. Meanwhile the saccade duration decreased with an increase in perceived dynamism. Additionally, the analysis showed that experts gave higher dynamic ratings compared to laypeople and were more familiar with the artworks. These results indicate that there is a correlation between perceived dynamism in abstract painting and viewing behaviour - something that has long been assumed by art historians but had never been empirically supported.
Elisa Infanti; D. Samuel Schwarzkopf
Mapping sequences can bias population receptive field estimates Journal Article
In: NeuroImage, vol. 211, pp. 116636, 2020.
Population receptive field (pRF) modelling is a common technique for estimating the stimulus-selectivity of populations of neurons using neuroimaging. Here, we aimed to address if pRF properties estimated with this method depend on the spatio-temporal structure and the predictability of the mapping stimulus. We mapped the polar angle preference and tuning width of voxels in visual cortex (V1–V4) of healthy, adult volunteers. We compared sequences sweeping orderly through the visual field or jumping from location to location employing stimuli of different width (45° vs 6°) and cycles of variable duration (8s vs 60s). While we did not observe any systematic influence of stimulus predictability, the temporal structure of the sequences significantly affected tuning width estimates. Ordered designs with large wedges and short cycles produced systematically smaller estimates than random sequences. Interestingly, when we used small wedges and long cycles, we obtained larger tuning width estimates for ordered than random sequences. We suggest that ordered and random mapping protocols show different susceptibility to other design choices such as stimulus type and duration of the mapping cycle and can produce significantly different pRF results.
Jaana Simola; Jarmo Kuisma; Johanna K. Kaakinen
Attention, memory and preference for direct and indirect print advertisements Journal Article
In: Journal of Business Research, vol. 111, pp. 249–261, 2020.
We examined the effectiveness of direct and indirect advertising. Direct ads openly depict advertised products and brands. In indirect ads, the ad message requires elaboration. Eye movements were recorded while consumers viewed direct and indirect advertisements under fixed (5 s) or unlimited exposure time. Recognition of ads, brand logos and preference for brands were tested under two different delays (after 24 h or 45 min) from the ad exposure. The total viewing time was longer for the indirect ads when exposure time was unlimited. Overall, ad pictorials received more fixations and the brand preference was higher in the indirect condition. Recognition improved for brand logos of indirect ads when tested after the shorter delay. Consumers experienced indirect ads as more original, surprising, intellectually challenging and harder to interpret than direct ads. Current results indicate that indirect ads elicit cognitive elaboration that translates into higher preference and memorability for brands.
Deirdre A. Robertson; Peter D. Lunn
The effect of spatial location of calorie information on choice, consumption and eye movements Journal Article
In: Appetite, vol. 144, pp. 1–10, 2020.
We manipulated the presence and spatial location of calorie labels on menus while tracking eye movements. A novel “lab-in-the-field” experimental design allowed eye movements to be recorded while participants chose lunch from a menu, unaware that their choice was part of a study. Participants exposed to calorie information ordered 93 fewer calories (11%) relative to a control group who saw no calorie labels. The difference in number of calories consumed was greater still. The impact was strongest when calorie information was displayed just to the right of the price, in an equivalent font. The effects were mediated by knowledge of the amount of calories in the meal, implying that calorie posting led to more informed decision-making. There was no impact on enjoyment of the meal. The eye-tracking data suggested that the spatial arrangement altered individuals' search strategies while viewing the menu. This research suggests that the spatial location of calories on menus may be an important consideration when designing calorie posting legislation and policy. 1.
Qëndresa Rramani; Ian Krajbich; Laura Enax; Lisa Brustkern; Bernd Weber
Salient nutrition labels shift peoples' attention to healthy foods and exert more influence on their choices Journal Article
In: Nutrition Research, vol. 80, pp. 106–116, 2020.
Nutrition labels are the most commonly used tools to promote healthy choices. Research has shown that color-coded traffic light (TL) labels are more effective than purely numerical Guideline Daily Amount (GDA) labels at promoting healthy eating. While these effects of TL labels on food choice are hypothesized to rely on attention, how this occurs remains unknown. Based on previous eye-tracking research we hypothesized that TL labels compared to GDA labels will attract more attention, will induce shifts in attention allocation to healthy food items, and will increase the influence of attention to the labels on food choice. To test our hypotheses, we conducted an eye-tracking experiment where participants chose between healthy and unhealthy food items accompanied either by TL or GDA labels. We found that TL labels biased choices towards healthier items because their presence caused participants to allocate more attention to healthy items and less to unhealthy items. Moreover, our data indicated that TL labels were more likely to be looked at, and had a larger effect on choice, despite attracting less dwell time. These results reveal that TL labels increase healthy food choice, relative to GDA labels, by shifting attention and the effects of attention on choice.
Donghyun Ryu; Andrew Cooke; Eduardo Bellomo; Tim Woodman
Watch out for the hazard! Blurring peripheral vision facilitates hazard perception in driving Journal Article
In: Accident Analysis and Prevention, vol. 146, pp. 1–13, 2020.
The objectives of this paper were to directly examine the roles of central and peripheral vision in hazard perception and to test whether perceptual training can enhance hazard perception. We also examined putative cortical mechanisms underpinning any effect of perceptual training on performance. To address these objectives, we used the gaze-contingent display paradigm to selectively present information to central and peripheral parts of the visual field. In Experiment 1, we compared hazard perception abilities of experienced and inexperienced drivers while watching video clips in three different viewing conditions (full vision; clear central and blurred peripheral vision; blurred central and clear peripheral vision). Participants' visual search behaviour and cortical activity were simultaneously recorded. In Experiment 2, we determined whether training with clear central and blurred peripheral vision could improve hazard perception among non-licensed drivers. Results demonstrated that (i) information from central vision is more important than information from peripheral vision in identifying hazard situations, for screen-based hazard perception tests, (ii) clear central and blurred peripheral vision viewing helps the alignment of line-of-gaze and attention, (iii) training with clear central and blurred peripheral vision can improve screen-based hazard perception. The findings have important implications for road safety and provide a new training paradigm to improve hazard perception.
Steven W. Savage; Douglas D. Potter; Benjamin W. Tatler
The effects of cognitive distraction on behavioural, oculomotor and electrophysiological metrics during a driving hazard perception task Journal Article
In: Accident Analysis and Prevention, vol. 138, pp. 1–11, 2020.
Previous research has demonstrated that the distraction caused by holding a mobile telephone conversation is not limited to the period of the actual conversation (Haigney, 1995; Redelmeier & Tibshirani, 1997; Savage et al., 2013). In a prior study we identified potential eye movement and EEG markers of cognitive distraction during driving hazard perception. However the extent to which these markers are affected by the demands of the hazard perception task are unclear. Therefore in the current study we assessed the effects of secondary cognitive task demand on eye movement and EEG metrics separately for periods prior to, during and after the hazard was visible. We found that when no hazard was present (prior and post hazard windows), distraction resulted in changes to various elements of saccadic eye movements. However, when the target was present, distraction did not affect eye movements. We have previously found evidence that distraction resulted in an overall decrease in theta band output at occipital sites of the brain. This was interpreted as evidence that distraction results in a reduction in visual processing. The current study confirmed this by examining the effects of distraction on the lambda response component of subjects eye fixation related potentials (EFRPs). Furthermore, we demonstrated that although detections of hazards were not affected by distraction, both eye movement and EEG metrics prior to the onset of the hazard were sensitive to changes in cognitive workload. This suggests that changes to specific aspects of the saccadic eye movement system could act as unobtrusive markers of distraction even prior to a breakdown in driving performance.
Lisa Schäfer; Ricarda Schmidt; Silke M. Müller; Arne Dietrich; Anja Hilbert
Changes in visual attention towards food cues after obesity surgery: An eye-tracking study Journal Article
In: Journal of Psychiatric Research, vol. 129, pp. 214–221, 2020.
Research documented the effectiveness of obesity surgery (OS) for long-term weight loss and improvements in medical and psychosocial sequelae, and general cognitive functioning. However, there is only preliminary evidence for changes in attentional processing of food cues after OS. This study longitudinally investigated visual attention towards food cues from pre- to 1-year post-surgery. Using eye tracking (ET) and a Visual Search Task (VST), attentional processing of food versus non-food cues was assessed in n = 32 patients with OS and n = 31 matched controls without weight-loss treatment at baseline and 1-year follow-up. Associations with experimentally assessed impulsivity and eating disorder psychopathology and the predictive value of changes in visual attention towards food cues for weight loss and eating behaviors were determined. During ET, both groups showed significant gaze duration biases to non-food cues without differences and changes over time. No attentional biases over group and time were found by the VST. Correlations between attentional data and clinical variables were sparse and not robust over time. Changes in visual attention did not predict weight loss and eating disorder psychopathology after OS. The present study provides support for a top-down regulation of visual attention to non-food cues in individuals with severe obesity. No changes in attentional processing of food cues were detected 1-year post-surgery. Further studies are needed with comparable methodology and longer follow-ups to clarify the role of biased visual attention towards food cues for long-term weight outcomes and eating behaviors after OS.
Huiru Shao; Jing Li; Wenbo Wan; Huaxiang Zhang; Jiande Sun
Saccadic trajectory-based identity authentication Journal Article
In: Multimedia Tools and Applications, vol. 79, no. 7-8, pp. 4891–4905, 2020.
The saccadic trajectory is generated by extra-ocular muscles in the eyes, which is a complex mechanism related to brain-driven neural signal. The saccadic trajectory has the characteristics of non-reproducibility and non-contact. In this paper, we propose a saccadic trajectory-based identity authentication method considering that saccadic trajectory can be used as a behavior-based biometric. In this method, we adopt Velocity-Threshold (I-VT) algorithm to extract saccadic trajectories from the whole eye movement data, extract features via wavelet packet transform and authenticate the identity via classifying these features by SVM. In this paper, we verify the proposed method on EMDBv1.0 dataset for horizontal eye movements. We select one subject to be the host and randomly choose another 50 subjects from the remaining 58 subjects as the attackers. We achieve the best performance via optimizing feature selection and the parameter of SVM. The experiment results show that the average accuracy for accepting the host can reach 98.09%, and the average accuracy for rejecting the attackers can reach 99.55%. It demonstrates that the saccadic trajectory-based identity authentication is promising in information security.
Nino Sharvashidze; Alexander C. Schütz
Task-dependent eye-movement patterns in viewing art Journal Article
In: Journal of Eye Movement Research, vol. 13, no. 2, pp. 1–17, 2020.
In art schools and classes for art history students are trained to pay attention to different aspects of an artwork, such as art movement characteristics and painting techniques. Experts are better at processing style and visual features of an artwork than nonprofessionals. Here we tested the hypothesis that experts in art use different, task-dependent viewing strategies than nonprofes- sionals when analyzing a piece of art. We compared a group of art history students with a group of students with no art education background, while viewing 36 paintings under three discrim- ination tasks. Participants were asked to determine the art movement, the date and the medium of the paintings. We analyzed behavioral and eye-movement data of 27 participants. Our ob- servers adjusted their viewing strategies according to the task, resulting in longer fixation du- rations and shorter saccade amplitudes for the medium detection task. We found higher task accuracy and subjective confidence, less congruence and higher dispersion in fixation locations in experts. Expertise also influenced saccade metrics, biasing it towards larger saccade ampli- tudes, advocating a more holistic scanning strategy of experts in all three tasks.
Brenda M Stoesz; Jessica Sutton
Defining the visual complexity of learning management systems using image metrics and subjective ratings Journal Article
In: Canadian Journal of Learning and Technology, vol. 46, no. 2, pp. 1–21, 2020.
Research has demonstrated that students' learning outcomes and motivation to learn are influenced by the visual design of learning technologies (e.g., learning management systems or LMS). One aspect of LMS design that has not been thoroughly investigated is visual complexity. In two experiments, postsecondary students rated the visual complexity of images of LMS after exposure durations of 50-500 ms. Perceptions of complexity were positively correlated across timed conditions and working memory capacity was associated with complexity ratings. Low-level image metrics were also found to predict perceptions of the LMS complexity. Results demonstrate the importance of the visual design of learning technologies and suggest that additional research on the impact of LMS visual complexity on learning outcomes is warranted.
An eye-movement experimental study of college students aesthetic preference for the shape of desk lamp Journal Article
In: International Journal of Trend in Research and Development, vol. 7, no. 3, pp. 146–148, 2020.
Taking Table Lamp as the research object, the eye movement analysis method and subjective questionnaire survey method are used to explore the aesthetic preference of college students for the shape of table Lamp through the comprehensive analysis of the eye movement data of the subjects and the subjective questionnaire survey data, so as to provide design reference for enterprises and peer designers. An Sr research eyelink helmet-mounted oculomotor is used to record the eye movement characteristics of 20 subjects during viewing pictures of different Table Lamp shapes. The results show that the modern simplicity style is the most popular. The second is European style and Chinese style.
Liis Uiga; Catherine M. Capio; Donghyun Ryu; William R. Young; Mark R. Wilson; Thomson W. L. Wong; Andy C. Y. Tse; Rich S. W. Masters
The role of movement-specific reinvestment in visuomotor control of walking by older adults Journal Article
In: Journals of Gerontology - Series B Psychological Sciences and Social Sciences, vol. 75, no. 2, pp. 282–292, 2020.
Objectives: The aim of this study was to examine the association between conscious monitoring and control of movements (i.e., movement-specific reinvestment) and visuomotor control during walking by older adults. Method: The Movement-Specific Reinvestment Scale (MSRS) was administered to 92 community-dwelling older adults, aged 65-81 years, who were required to walk along a 4.8-m walkway and step on the middle of a target as accurately as possible. Participants' movement kinematics and gaze behavior were measured during approach to the target and when stepping on it. Results: High scores on the MSRS were associated with prolonged stance and double support times during approach to the stepping target, and less accurate foot placement when stepping on the target. No associations between MSRS and gaze behavior were observed. Discussion: Older adults with a high propensity for movement-specific reinvestment seem to need more time to "plan" future stepping movements, yet show worse stepping accuracy than older adults with a low propensity for movement-specific reinvestment. Future research should examine whether older adults with a higher propensity for reinvestment are more likely to display movement errors that lead to falling.
Pedro G. Vieira; Matthew R. Krause; Christopher C. Pack
tACS entrains neural activity while somatosensory input is blocked Journal Article
In: PLoS Biology, vol. 18, no. 10, pp. 1–14, 2020.
Transcranial alternating current stimulation (tACS) modulates brain activity by passing electrical current through electrodes that are attached to the scalp. Because it is safe and noninvasive, tACS holds great promise as a tool for basic research and clinical treatment. However, little is known about how tACS ultimately influences neural activity. One hypothesis is that tACS affects neural responses directly, by producing electrical fields that interact with the brain's endogenous electrical activity. By controlling the shape and location of these electric fields, one could target brain regions associated with particular behaviors or symptoms. However, an alternative hypothesis is that tACS affects neural activity indirectly, via peripheral sensory afferents. In particular, it has often been hypothesized that tACS acts on sensory fibers in the skin, which in turn provide rhythmic input to central neurons. In this case, there would be little possibility of targeted brain stimulation, as the regions modulated by tACS would depend entirely on the somatosensory pathways originating in the skin around the stimulating electrodes. Here, we directly test these competing hypotheses by recording single-unit activity in the hippocampus and visual cortex of alert monkeys receiving tACS. We find that tACS entrains neuronal activity in both regions, so that cells fire synchronously with the stimulation. Blocking somatosensory input with a topical anesthetic does not significantly alter these neural entrainment effects. These data are therefore consistent with the direct stimulation hypothesis and suggest that peripheral somatosensory stimulation is not required for tACS to entrain neurons.
Jorrig Vogels; David M. Howcroft; Elli Tourtouri; Vera Demberg
How speakers adapt object descriptions to listeners under load Journal Article
In: Language, Cognition and Neuroscience, vol. 35, no. 1, pp. 78–92, 2020.
A controversial issue in psycholinguistics is the degree to which speakers employ audience design during language production. Hypothesising that a consideration of the listener's needs is particularly relevant when the listener is under cognitive load, we had speakers describe objects for a listener performing an easy or a difficult simulated driving task. We predicted that speakers would introduce more redundancy in their descriptions in the difficult driving task, thereby accommodating the listener's reduced cognitive capacity. The results showed that speakers did not adapt their descriptions to a change in the listener's cognitive load. However, speakers who had experienced the driving task themselves before and who were presented with the difficult driving task first were more redundant than other speakers. These findings may suggest that speakers only consider the listener's needs in the presence of strong enough cues, and do not update their beliefs about these needs during the task.
Louis Williams; Eugene McSorley; Rachel McCloy
Enhanced associations with actions of the artist influence gaze behaviour Journal Article
In: i-Perception, vol. 11, no. 2, pp. 1–25, 2020.
The aesthetic experience of the perceiver of art has been suggested to relate to the art-making process of the artist. The artist's gestures during the creation process have been stated to influence the perceiver's art-viewing experience. However, limited studies explore the art-viewing experience in relation to the creative process of the artist. We introduced eye-tracking measures to further establish how congruent actions with the artist influence perceiver's gaze behaviour. Experiments 1 and 2 showed that simultaneous congruent and incongruent actions do not influence gaze behaviour. However, brushstroke paintings were found to be more pleasing than pointillism paintings. In Experiment 3, participants were trained to associate painting actions with hand primes to enhance visuomotor and visuovisual associations with the artist's actions. A greater amount of time was spent fixating brushstroke paintings when presented with a congruent prime compared with an incongruent prime, and fewer fixations were made to these styles of paintings when presented with an incongruent prime. The results suggest that explicit links that allow perceivers to resonate with the artist's actions lead to greater exploration of preferred artwork styles.
Ye Xia; Mauro Manassi; Ken Nakayama; Karl Zipser; David Whitney
Visual crowding in driving Journal Article
In: Journal of Vision, vol. 20, no. 6, pp. 1–17, 2020.
Visual crowding-the deleterious influence of nearby objects on object recognition-is considered to be a major bottleneck for object recognition in cluttered environments. Although crowding has been studied for decades with static and artificial stimuli, it is still unclear how crowding operates when viewing natural dynamic scenes in real-life situations. For example, driving is a frequent and potentially fatal real-life situation where crowding may play a critical role. In order to investigate the role of crowding in this kind of situation, we presented observers with naturalistic driving videos and recorded their eye movements while they performed a simulated driving task. We found that the saccade localization on pedestrians was impacted by visual clutter, in a manner consistent with the diagnostic criteria of crowding (Bouma's rule of thumb, flanker similarity tuning, and the radial-tangential anisotropy). In order to further confirm that altered saccadic localization is a behavioral consequence of crowding, we also showed that crowding occurs in the recognition of cluttered pedestrians in a more conventional crowding paradigm. We asked participants to discriminate the gender of pedestrians in static video frames and found that the altered saccadic localization correlated with the degree of crowding of the saccade targets. Taken together, our results provide strong evidence that crowding impacts both recognition and goal-directed actions in natural driving situations.
Bao Zhang; Shuhui Liu; Cenlou Hu; Ziwen Luo; Sai Huang; Jie Sui
Enhanced memory-driven attentional capture in action video game players Journal Article
In: Computers in Human Behavior, vol. 107, pp. 1–7, 2020.
Action video game players (AVGPs) have been shown to have an enhanced cognitive control ability to reduce stimulus-driven attentional capture (e.g., from an exogenous salient distractor) compared with non-action video game players (NVGPs). Here we examined whether these benefits could extend to the memory-driven attentional capture (i.e., working memory (WM) representations bias visual attention toward a matching distractor). AVGPs and NVGPs were instructed to complete a visual search task while actively maintaining 1, 2 or 4 items in WM. There was a robust advantage to the memory-driven attentional capture in reaction time and first eye movement fixation in the AVGPs compared to the NVGPs when they had to maintain one item in WM. Moreover, the effect of memory-driven attentional capture was maintained in the AVGPs when the WM load was increased, but it was eliminated in the NVGPs. The results suggest that AVGPs may devote more attentional resources to sustaining the cognitive control rather than to suppressing the attentional capture driven by the active WM representations.
Near or far? The effect of latest booking time on hotel booking intention: Based on eye-tracking experiments Journal Article
In: International Journal of Frontiers in Sociology, vol. 2, no. 7, pp. 1–12, 2020.
Online travel agencies (OTAs) depends on marketing clues to reduce the consumer uncertainty perceptions of online travel-related products. The latest booking time (LBT) provided by the consumer has a significant impact on purchasing decisions. This study aims to explore the effect of LBT on consumer visual attention and booking intention along with the moderation effect of online comment valence (OCV). Since eye movement is bound up with the transfer of visual attention, eye-tracking is used to record visual attention of consumer. Our research used a 3 (LBT: near vs. medium vs. far) × 3 (OCV: high vs. medium vs. low) design to conduct the experiments. The main findings showed the following:(1) LBT can obviously increase the visual attention to the whole advertisements and improve the booking intention;(2) OCV moderates the effect of LBT on both visual attention to the whole advertisements and booking intention. Only when OCV are medium and high, LBT can obviously improve attention to the whole advertisements and increase consumers' booking intention. The experiment results show that OTAs can improve the advertising effectiveness by adding LBT label, but LBT have no effect with low-level OCV.
Psychological analysis of online teaching in colleges based on eye-tracking technology Journal Article
In: Revista Argentina de Clinica Psicologica, vol. 29, no. 2, pp. 523–529, 2020.
Eye-tracking technology has been widely adopted to capture the psychological changes of college students in the learning process. With the aid of eye-tracking technology this paper establishes a psychological analysis model for students in online teaching. Four eye movement parameters were selected for the model, including pupil diameter, fixation time, re-reading time and retrospective time. A total of 100 college students were selected for an eye movement test in online teaching environment. The test data were analyzed on the SPSS software. The results show that the eye movement parameters are greatly affected by the key points in teaching and the contents that interest the students; the two influencing factors can arouse and attract the students' attention in the teaching process. The research results provide an important reference for the psychological study of online teaching in colleges.
Jiawen Zhu; Kara Dawson; Albert D. Ritzhaupt; Pavlo (Pasha) Antonenko
Investigating how multimedia and modality design principles influence student learning performance, satisfaction, mental effort, and visual attention Journal Article
In: Journal of Educational Multimedia and Hypermedia, vol. 29, no. 3, pp. 265–284, 2020.
This study investigated the effects of multimedia and modal- ity design principles using a learning intervention about Aus- tralia with a sample of college students and employing mea- sures of learning outcomes, visual attention, satisfaction, and mental effort. Seventy-five college students were systemati- cally assigned to one of four conditions: a) text with pictures, b) text without pictures, c) narration with pictures, or d) nar- ration without pictures. No significant differences were found among the four groups in learning performance, satisfaction, or self-reported mental effort, and participants rarely focused their visual attention on the representational pictures provid- ed in the intervention. Neither the multimedia nor the modal- ity principles held true in this study. However, participants in narration environments focused significantly more visual at- tention on the “Next” button, a navigational aid included on all slides. This study contributes to the research on visual at- tention and navigational aids in multimedia learning, and it suggests such features may cause distractions, particularly when spoken text is provided without on-screen text. The paper also offers implications for the design of multimedia learning