阅读和语言眼动追踪出版物
以下按年份列出了截至2024年（2025年初）的所有EyeLink眼动仪阅读和语言研究出版物。您可以使用视觉世界、理解、语音生成等关键字搜索眼动追踪出版物。您还可以搜索单个作者的姓名。如果我们错过了任何EyeLink阅读或语言研究文章，请给我们发电子邮件！
2008 |
Ralf Engbert; Antje Nuthmann Self-consistent estimation of mislocated fixations during reading Journal Article In: PLoS ONE, vol. 3, no. 2, pp. e1534, 2008. @article{Engbert2008,During reading, we generate saccadic eye movements to move words into the center of the visual field for word processing. However, due to systematic and random errors in the oculomotor system, distributions of within-word landing positions are rather broad and show overlapping tails, which suggests that a fraction of fixations is mislocated and falls on words to the left or right of the selected target word. Here we propose a new procedure for the self-consistent estimation of the likelihood of mislocated fixations in normal reading. Our approach is based on iterative computation of the proportions of several types of oculomotor errors, the underlying probabilities for word-targeting, and corrected distributions of landing positions. We found that the average fraction of mislocated fixations ranges from about 10% to more than 30% depending on word length. These results show that fixation probabilities are strongly affected by oculomotor errors. |
Paola Escudero; Rachel Hayes-Harb; Holger Mitterer Novel second-language words and asymmetric lexical access Journal Article In: Journal of Phonetics, vol. 36, no. 2, pp. 345–360, 2008. @article{Escudero2008,The lexical and phonetic mapping of auditorily confusable L2 nonwords was examined by teaching L2 learners novel words and by later examining their word recognition using an eye-tracking paradigm. During word learning, two groups of highly proficient Dutch learners of English learned 20 English nonwords, of which 10 contained the English contrast /ε/-æ/ (a confusable contrast for native Dutch speakers). One group of subjects learned the words by matching their auditory forms to pictured meanings, while a second group additionally saw the spelled forms of the words. We found that the group who received only auditory forms confused words containing /æ/ and /ε/ symmetrically, i.e., both /æ/ and /ε/ auditory tokens triggered looks to pictures containing both /æ/ and /ε/. In contrast, the group who also had access to spelled forms showed the same asymmetric word recognition pattern found by previous studies, i.e., they only looked at pictures of words containing /ε/ when presented with /ε/ target tokens, but looked at pictures of words containing both /æ/ and /ε/ when presented with /æ/ target tokens. The results demonstrate that L2 learners can form lexical contrasts for auditorily confusable novel L2 words. However, and most importantly, this study suggests that explicit information over the contrastive nature of two new sounds may be needed to build separate lexical representations for similar-sounding L2 words. |
Sarah C. Creel; Richard N. Aslin; Michael K. Tanenhaus Heeding the voice of experience: The role of talker variation in lexical access Journal Article In: Cognition, vol. 106, no. 2, pp. 633–664, 2008. @article{Creel2008,Two experiments used the head-mounted eye-tracking methodology to examine the time course of lexical activation in the face of a non-phonemic cue, talker variation. We found that lexical competition was attenuated by consistent talker differences between words that would otherwise be lexical competitors. In Experiment 1, some English cohort word-pairs were consistently spoken by a single talker (male couch, male cows), while other word-pairs were spoken by different talkers (male sheep, female sheet). After repeated instances of talker-word pairings, words from different-talker pairs showed smaller proportions of competitor fixations than words from same-talker pairs. In Experiment 2, participants learned to identify black-and-white shapes from novel labels spoken by one of two talkers. All of the 16 novel labels were VCVCV word-forms atypical of, but not phonologically illegal in, English. Again, a word was consistently spoken by one talker, and its cohort or rhyme competitor was consistently spoken either by that same talker (same-talker competitor) or the other talker (different-talker competitor). Targets with different-talker cohorts received greater fixation proportions than targets with same-talker cohorts, while the reverse was true for fixations to cohort competitors; there were fewer erroneous selections of competitor referents for different-talker competitors than same-talker competitors. Overall, these results support a view of the lexicon in which entries contain extra-phonemic information. Extensions of the artificial lexicon paradigm and developmental implications are discussed. © 2007 Elsevier B.V. All rights reserved. |
Ian Cunnings; Harald Clahsen The time-course of morphological constraints: A study of plurals inside derived words Journal Article In: The Mental Lexicon, vol. 3, no. 2, pp. 149–175, 2008. @article{Cunnings2008,The avoidance of regular but not irregular plurals inside compounds (e.g., *rats eater vs. mice eater) has been one of the most widely studied morphological phenomena in the psycholinguistics literature. To examine whether the constraints that are responsible for this contrast have any general significance beyond compounding, we investigated derived word forms containing regular and irregular plurals in two experiments. Experiment 1 was an offline acceptability judgment task, and Experiment 2 measured eye movements during reading derived words containing regular and irregular plurals and uninflected base nouns. The results from both experiments show that the constraint against regular plurals inside compounds generalizes to derived words. We argue that this constraint cannot be reduced to phonological properties, but is instead morphological in nature. The eye-movement data provide detailed information on the time-course of processing derived word forms indicating that early stages of processing are affected by a general constraint that disallows inflected words from feeding derivational processes, and that the more specific constraint against regular plurals comes in at a subsequent later stage of processing. We argue that these results are consistent with stage-based models of language processing. |
Delphine Dahan; Sarah J. Drucker; Rebecca A. Scarborough Talker adaptation in speech perception: Adjusting the signal or the representations? Journal Article In: Cognition, vol. 108, no. 3, pp. 710–718, 2008. @article{Dahan2008,Past research has established that listeners can accommodate a wide range of talkers in understanding language. How this adjustment operates, however, is a matter of debate. Here, listeners were exposed to spoken words from a speaker of an American English dialect in which the vowel /æ/ is raised before /g/, but not before /k/. Results from two experiments showed that listeners' identification of /k/-final words like back (which are unaffected by the dialect) was facilitated by prior exposure to their dialect-affected /g/-final counterparts, e.g., bag. This facilitation occurred because the competition between interpretations, e.g., bag or back, while hearing the initial portion of the input [bæ], was mitigated by the reduced probability for the input to correspond to bag as produced by this talker. Thus, adaptation to an accent is not just a matter of adjusting the speech signal as it is being heard; adaptation involves dynamic adjustment of the representations stored in the lexicon, according to the characteristics of the speaker or the context. |
Denis Drieghe Foveal processing and word skipping during reading Journal Article In: Psychonomic Bulletin & Review, vol. 15, no. 4, pp. 856–860, 2008. @article{Drieghe2008,An eyetracking experiment is reported examining the assumption that a word is skipped during sentence reading because parafoveal processing during preceding fixations has reached an advanced level in recognizing that word. Word n was presented with reduced contrast, with case alternation, or normally. Reingold and Rayner (2006) reported that, in comparison to the normal condition, reduced contrast increased viewing times on word n but not on word n+1, whereas case alternation increased viewing times on both words. These patterns were reflected in the fixation times of the present experiment, but a striking dissociation was observed in the skipping of word n+1: The reduced contrast of word n decreased skipping of word n+1, whereas case alternation did not. Apart from the amount of parafoveal processing, the decision to skip word n+1 is also influenced by the ease of processing word n: Difficulties in processing word n lead to a more conservative strategy in the decision to skip word n+1. |
Jon Andoni Duñabeitia; Alberto Avilés; Manuel Carreiras Noah's ark: Influence of the number of associates in visual word recognition Journal Article In: Psychonomic Bulletin & Review, vol. 15, no. 6, pp. 1072–1077, 2008. @article{Dunabeitia2008,The main aim of this study was to explore the extent to which the number of associates of a word (NoA) influences lexical access, in four tasks that focus on different processes of visual word recognition: lexical decision, reading aloud, progressive demasking, and online sentence reading. Results consistently showed that words with a dense associative neighborhood (high-NoA words) were processed faster than words with a sparse neighborhood (low-NoA words), extending previous findings from English lexical decision and categorization experiments. These results are interpreted in terms of the higher degree of semantic richness of high-NoA words as compared with low-NoA words. |
Steven Frisson; Brian McElree Complement coercion is not modulated by competition: Evidence from eye movements Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 34, no. 1, pp. 1–11, 2008. @article{Frisson2008a,An eye-movement study examined the processing of expressions requiring complement coercion (J. Pustejovsky, 1995), in which a noun phrase that does not denote an event (e.g., the book) appears as the complement of an event-selecting verb (e.g., began the book). Previous studies demonstrated that these expressions are more costly to process than are control expressions that can be processed with basic compositional operations (L. Pylkka ̈nen & B. McElree, 2006). Complement coercion is thought to be costly because comprehenders need to construct an event sense of the complement to satisfy the semantic restrictions of the verb (e.g., began writing the book). The reported experiment tests the alternative hypotheses that the cost arises from the need to select 1 interpretation from several or from competition between alternative interpretations. Expressions with weakly constrained interpretations (no dominant interpretation and several alternative interpretations) were not more costly to process than expressions with a strongly constrained interpretation (1 dominant interpretation and few alternative interpretations). These results are consistent with the hypothesis that the cost reflects the on-line construction of an event sense for the complement. |
Steven Frisson; Elizabeth Niswander-Klement; Alexander Pollatsek The role of semantic transparency in the processing of English compound words Journal Article In: British Journal of Psychology, vol. 99, no. 1, pp. 87–107, 2008. @article{Frisson2008,Experiment 1 examined whether the semantic transparency of an English unspaced compound word affected how long it took to process it in reading. Three types of opaque words were each compared with a matched set of transparent words (i.e. matched on the length and frequency of the constituents and the frequency of the word as a whole). Two sets of the opaque words were partially opaque: either the first constituent was not related to the meaning of the compound (opaque-transparent) or the second constituent was not related to the meaning of the compound (transparent-opaque). In the third set (opaque-opaque), neither constituent was related to the meaning of the compound. For all three sets, there was no significant difference between the opaque and the transparent words on any eye-movement measure. This replicates an earlier finding with Finnish compound words (Pollatsek & Hyönä, 2005) and indicates that, although there is now abundant evidence that the component constituents play a role in the encoding of compound words, the meaning of the compound word is not constructed from the parts, at least for compound words for which a lexical entry exists. Experiment 2 used the same compounds but with a space between the constituents. This presentation resulted in a transparency effect, indicating that when an assembly route is 'forced', transparency does play a role. |
Jesse A. Harris; Liina Pylkkänen; Brian McElree; Steven Frisson The cost of question concealment: Eye-tracking and MEG evidence Journal Article In: Brain and Language, vol. 107, no. 1, pp. 44–61, 2008. @article{Harris2008,Although natural language appears to be largely compositional, the meanings of certain expressions cannot be straightforwardly recovered from the meanings of their parts. This study examined the online processing of one such class of expressions: concealed questions, in which the meaning of a complex noun phrase (the proof of the theorem) shifts to a covert question (what the proof of the theorem is) when mandated by a sub-class of question-selecting verbs (e.g., guess). Previous behavioral and magnetoencephalographic (MEG) studies have reported a cost associated with converting an entity denotation to an event. Our study tested whether both types of meaning-shift affect the same computational resources by examining the effects elicited by concealed questions in eye-tracking and MEG. Experiment 1 found evidence from eye-movements that verbs requiring the concealed question interpretation require more processing time than verbs that do not support a shift in meaning. Experiment 2 localized the cost of the concealed question interpretation in the left posterior temporal region, an area distinct from that affected by complement coercion. Experiment 3 presented the critical verbs in isolation and found no posterior temporal effect, confirming that the effect of Experiment 2 reflected sentential, and not lexical-level, processing. |
Christoph Scheepers; Frank Keller; Mirella Lapata Evidence for serial coercion: A time course analysis using the visual-world paradigm Journal Article In: Cognitive Psychology, vol. 56, no. 1, pp. 1–29, 2008. @article{Scheepers2008,Metonymic verbs like start or enjoy often occur with artifact-denoting complements (e.g., The artist started the picture) although semantically they require event-denoting complements (e.g., The artist started painting the picture). In case of artifact-denoting objects, the complement is assumed to be type shifted (or coerced) into an event to conform to the verb's semantic restrictions. Psycholinguistic research has provided evidence for this kind of enriched composition: readers experience processing difficulty when faced with metonymic constructions compared to non-metonymic controls. However, slower reading times for metonymic constructions could also be due to competition between multiple interpretations that are being entertained in parallel whenever a metonymic verb is encountered. Using the visual-world paradigm, we devised an experiment which enabled us to determine the time course of metonymic interpretation in relation to non-metonymic controls. The experiment provided evidence in favor of a non-competitive, serial coercion process. |
Anne-Catherine Scherlen; Jean-Baptiste Bernard; Aurélie Calabrèse; Eric Castet Page mode reading with simulated scotomas: Oculo-motor patterns Journal Article In: Vision Research, vol. 48, no. 18, pp. 1870–1878, 2008. @article{Scherlen2008,This study investigated the relationship between reading speed and oculo-motor parameters when normally sighted observers had to read single sentences with an artificial macular scotoma. Using multiple regression analysis, our main result shows that two significant predictors, number of saccades per sentence followed by average fixation duration, account for 94% of reading speed variance: reading speed decreases when number of saccades and fixation duration increase. The number of letters per forward saccade (L/FS), which was measured directly in contrast to previous studies, is not a significant predictor. The results suggest that, independently of the size of saccades, some or all portions of a sentence are temporally integrated across an increasing number of fixations as reading speed is reduced. |
Seppo Vainio; Jukka Hyönä; Anneli Pajunen Processing modifier-head agreement in reading: Evidence for a delayed effect of agreement Journal Article In: Memory & Cognition, vol. 36, no. 2, pp. 329–340, 2008. @article{Vainio2008,The present study examined whether type of inflectional case (semantic or grammatical) and phonological and morphological transparency affect the processing of Finnish modifier-head agreement in reading. Readers' eye movement patterns were registered. In Experiment 1, an agreeing modifier condition (agreement was transparent) was compared with a no-modifier condition, and in Experiment 2, similar constructions with opaque agreement were used. In both experiments, agreement was found to affect the processing of the target noun with some delay. In Experiment 3, unmarked and case-marked modifiers were used. The results again demonstrated a delayed agreement effect, ruling out the possibility that the agreement effects observed in Experiments 1 and 2 reflect a mere modifier-presence effect. We concluded that agreement exerts its effect at the level of syntactic integration but not at the level of lexical access. |
Matteo Valsecchi; Sven Saage; Brian J. White; Karl R. Gegenfurtner Advantage in reading lexical bundles is reduced in non-native speakers Journal Article In: Journal of Eye Movement Research, vol. 6, no. 5:2, pp. 1–15, 2008. @article{Valsecchi2008,Formulaic sequences such as idioms, collocations, and lexical bundles, which may be processed as holistic units, make up a large proportion of natural language. For language learners, however, formulaic patterns are a major barrier to achieving native like compe- tence. The present study investigated the processing of lexical bundles by native speakers and less advanced non-native English speakers using corpus analysis for the identification of lexical bundles and eye-tracking to measure the reading times. The participants read sentences containing 4-grams and control phrases which were matched for sub-string fre- quency. The results for native speakers demonstrate a processing advantage for formulaic sequences over the matched control units. We do not find any processing advantage for non-native speakers which suggests that native like processing of lexical bundles comes only late in the acquisition process |
Suiping Wang; Hsuan-Chih Chen; Jinmian Yang; Lei Mo Immediacy of integration in discourse comprehension: Evidence from Chinese readers' eye movements Journal Article In: Language and Cognitive Processes, vol. 23, no. 2, pp. 241–257, 2008. @article{Wang2008a,An eye-movement study was conducted to examine whether Chinese readers immediately activate and integrate related background information during discourse comprehension. Participants were asked to read short passages, each containing a critical word that fitted well within the local context but was inconsistent or neutral with background information from the early part of the passage. This manipulation of textual consistency produced reliable effects on both first-pass reading fixations in the target region and second-pass reading times in the pre-target and target regions. These results indicate that integration processes start very rapidly in reading text in a writing system with properties that encourage delayed processing, suggesting that immediate processing is likely a universal principle in discourse comprehension. |
Tessa Warren; Kerry McConnell; Keith Rayner Effects of context on eye movements when reading about possible and impossible events Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 34, no. 4, pp. 1001–1010, 2008. @article{Warren2008,Plausibility violations resulting in impossible scenarios lead to earlier and longer lasting eye movement disruption than violations resulting in highly unlikely scenarios (K. Rayner, T. Warren, B. J. Juhasz, & S. P. Liversedge, 2004; T. Warren & K. McConnell, 2007). This could reflect either differences in the timing of availability of different kinds of information (e.g., selectional restrictions, world knowledge, and context) or differences in their relative power to guide semantic interpretation. The authors investigated eye movements to possible and impossible events in real-world and fantasy contexts to determine when contextual information influences detection of impossibility cued by a semantic mismatch between a verb and an argument. Gaze durations on a target word were longer to impossible events independent of context. However, a measure of the time elapsed from first fixating the target word to moving past it showed disruption only in the real-world context. These results suggest that contextual information did not eliminate initial disruption but moderated it quickly thereafter. |
Sarah J. White; Raymond Bertram; Jukka Hyönä Semantic processing of previews within compound words Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 34, no. 4, pp. 988–993, 2008. @article{White2008a,Previous studies have suggested that previews of words prior to fixation can be processed orthographically, but not semantically, during reading of sentences (K. Rayner, D. A. Balota, & A. Pollatsek, 1986). The present study tested whether semantic processing of previews can occur within words. The preview of the second constituent of 2-constituent Finnish compound nouns was manipulated. The previews were either identical to the 2nd constituent or they were incorrect in the form of a semantically related word, a semantically unrelated word, or a semantically meaningless nonword. The results indicate that previews of 2nd constituents within compound words can be semantically processed. The results have important implications for understanding the nature of preview and compound word processing. These issues are crucial to developing comprehensive models of eye-movement control and word recognition during reading. |
Elizabeth Wonnacott; Elissa L. Newport; Michael K. Tanenhaus Acquiring and processing verb argument structure: Distributional learning in a miniature language Journal Article In: Cognitive Psychology, vol. 56, no. 3, pp. 165–209, 2008. @article{Wonnacott2008,Adult knowledge of a language involves correctly balancing lexically-based and more language-general patterns. For example, verb argument structures may sometimes readily generalize to new verbs, yet with particular verbs may resist generalization. From the perspective of acquisition, this creates significant learnability problems, with some researchers claiming a crucial role for verb semantics in the determination of when generalization may and may not occur. Similarly, there has been debate regarding how verb-specific and more generalized constraints interact in sentence processing and on the role of semantics in this process. The current work explores these issues using artificial language learning. In three experiments using languages without semantic cues to verb distribution, we demonstrate that learners can acquire both verb-specific and verb-general patterns, based on distributional information in the linguistic input regarding each of the verbs as well as across the language as a whole. As with natural languages, these factors are shown to affect production, judgments and real-time processing. We demonstrate that learners apply a rational procedure in determining their usage of these different input statistics and conclude by suggesting that a Bayesian perspective on statistical learning may be an appropriate framework for capturing our findings. |
Mark Yates; John Friend; Danielle M. Ploetz The effect of phonological neighborhood density on eye movements during reading Journal Article In: Cognition, vol. 107, no. 2, pp. 685–692, 2008. @article{Yates2008,Recent research has indicated that phonological neighbors speed processing in a variety of isolated word recognition tasks. Nevertheless, as these tasks do not represent how we normally read, it is not clear if phonological neighborhood has an effect on the reading of sentences for meaning. In the research reported here, we evaluated whether phonological neighborhood density influences reading of target words embedded in sentences. The eye movement data clearly revealed that phonological neighborhood facilitated reading. This was evidenced by shorter fixations for words with large neighborhoods relative to words with small neighborhoods. These results are important in indicating that phonology is a crucial component of reading and that it affects early lexical processing. © 2007 Elsevier B.V. All rights reserved. |
Eiling Yee; Sheila E. Blumstein; Julie C. Sedivy Lexical-semantic activation in Broca's and Wernicke's aphasia: Evidence from eye movements Journal Article In: Journal of Cognitive Neuroscience, vol. 20, no. 4, pp. 592–612, 2008. @article{Yee2008,Lexical processing requires both activating stored representations, and selecting among active candidates. The current work uses an eye-tracking paradigm to conduct a detailed temporal investigation of lexical processing. Patients with Broca's and Wernicke's aphasia are studied to shed light on the roles of anterior and posterior brain regions in lexical processing as well as the effects of lexical competition on such processing. Experiment 1 investigates whether objects semantically related to an uttered word are preferentially fixated, e.g., given the auditory target 'hammer', do participants fixate a picture of a nail? Results show that, like normals, both groups of patients are more likely to fixate on an object semantically related to the target than an unrelated object. Experiment 2 explores whether Broca's and Wernicke's aphasics show competition effects when words share onsets with the uttered word, e.g., given the auditory target 'hammer', do participants fixate a picture of a hammock? Experiment 3 investigates whether these patients activate words semantically related to onset competitors of the uttered word, e.g., given the auditory target 'hammock' do participants fixate a nail due to partial activation of the onset competitor hammer? Results of Experiments 2 and 3 show pathological patterns of performance for both Broca's and Wernicke's aphasics under conditions of lexical onset competition. However, the patterns of deficit differed, suggesting different functional and computational roles for anterior and posterior areas in lexical processing. Implications of the findings for the functional architecture of the lexical processing system and its potential neural substrates are considered. |
Miao-Hsuan Yen; Jie-Li Tsai; Ovid J. L. Tzeng; Daisy L. Hung Eye movements and parafoveal word processing in reading Chinese Journal Article In: Memory & Cognition, vol. 36, no. 5, pp. 1033–1045, 2008. @article{Yen2008,In two experiments, a parafoveal lexicality effect in the reading of Chinese (a script that does not physically mark word boundaries) was examined. Both experiments used the boundary paradigm (Rayner, 1975) and indicated that the lexical properties of parafoveal words influenced eye movements. In Experiment 1, the preview stimulus was either a real word or a pseudoword. Targets with word previews, even unrelated ones, were more likely to be skipped than were those with pseudowords. In Experiment 2, all of the preview stimuli had the same first character as the target. Target words with same-morpheme previews were fixated for less time than were those with pseudoword previews, suggesting that morphological processing may be involved in extracting information from parafoveal words in Chinese reading. Together, the two experiments dealing with how words are processed in Chinese may provide some constraints on current computational models of reading. |
Antje S. Meyer; Marc Ouellet; Christine Häcker Parallel processing of objects in a naming task Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 34, no. 4, pp. 982–987, 2008. @article{Meyer2008,The authors investigated whether speakers who named several objects processed them sequentially or in parallel. Speakers named object triplets, arranged in a triangle, in the order left, right, and bottom object. The left object was easy or difficult to identify and name. During the saccade from the left to the right object, the right object shown at trial onset (the interloper) was replaced by a new object (the target), which the speakers named. Interloper and target were identical or unrelated objects, or they were conceptually unrelated objects with the same name (e.g., bat [animal] and [baseball] bat). The mean duration of the gazes to the target was shorter when interloper and target were identical or had the same name than when they were unrelated. The facilitatory effects of identical and homophonous interlopers were significantly larger when the left object was easy to process than when it was difficult to process. This interaction demonstrates that the speakers processed the left and right objects in parallel. |
Don C. Mitchell; Xingjia Shen; Matthew J. Green; Timothy L. Hodgson Accounting for regressive eye-movements in models of sentence processing: A reappraisal of the Selective Reanalysis hypothesis Journal Article In: Journal of Memory and Language, vol. 59, no. 3, pp. 266–293, 2008. @article{Mitchell2008,When people read temporarily ambiguous sentences, there is often an increased prevalence of regressive eye-movements launched from the word that resolves the ambiguity. Traditionally, such regressions have been interpreted at least in part as reflecting readers' efforts to re-read and reconfigure earlier material, as exemplified by the Selective Reanalysis hypothesis [Frazier, L., & Rayner, K. (1982). Making and correcting errors during sentence comprehension: Eye movements in the analysis of structurally ambiguous sentences. Cognitive Psychology, 14, 178-210]. Within such frameworks it is assumed that the selection of saccadic landing-sites is linguistically supervised. As an alternative to this proposal, we consider the possibility (dubbed the Time Out hypothesis) that regression control is partly decoupled from linguistic operations and that landing-sites are instead selected on the basis of low-level spatial properties such as their proximity to the point from which the regressive saccade was launched. Two eye-tracking experiments were conducted to compare the explanatory potential of these two accounts. Experiment 1 manipulated the formatting of linguistically identical sentences and showed, contrary to purely linguistic supervision, that the landing site of the first regression from a critical word was reliably influenced by the physical layout of the text. Experiment 2 used a fixed physical format but manipulated the position in the display at which reanalysis-relevant material was located. Here the results showed a highly reliable linguistic influence on the overall distribution of regression landing sites (though with few effects being apparent on the very first regression). These results are interpreted as reflecting mutually exclusive forms of regression control with fixation sequences being influenced both by spatially constrained, partially decoupled supervision systems as well as by some kind of linguistic guidance. The findings are discussed in relation to existing computational models of eye-movements in reading. |
Jane L. Morgan; Gus Elswijk; Antje S. Meyer Extrafoveal processing of objects in a naming task: Evidence from word probe experiments Journal Article In: Psychonomic Bulletin & Review, vol. 15, no. 3, pp. 561–565, 2008. @article{Morgan2008,In two experiments, we investigated the processing of extrafoveal objects in a double-object naming task. On most trials, participants named two objects; but on some trials, the objects were replaced shortly after trial onset by a written word probe, which participants had to name instead of the objects. In Experiment 1, the word was presented in the same location as the left object either 150 or 350 msec after trial onset and was either phonologically related or unrelated to that object name. Phonological facilitation was observed at the later but not at the earlier SOA. In Experiment 2, the word was either phonologically related or unrelated to the right object and was presented 150 msec after the speaker had begun to inspect that object. In contrast with Experiment 1, phonological facilitation was found at this early SOA, demonstrating that the speakers had begun to process the right object prior to fixation. |
James S. Magnuson; Michael K. Tanenhaus; Richard N. Aslin Immediate effects of form-class constraints on spoken word recognition Journal Article In: Cognition, vol. 108, no. 3, pp. 866–873, 2008. @article{Magnuson2008,In many domains of cognitive processing there is strong support for bottom-up priority and delayed top-down (contextual) integration. We ask whether this applies to supra-lexical context that could potentially constrain lexical access. Previous findings of early context integration in word recognition have typically used constraints that can be linked to pair-wise conceptual relations between words. Using an artificial lexicon, we found immediate integration of syntactic expectations based on pragmatic constraints linked to syntactic categories rather than words: phonologically similar "nouns" and "adjectives" did not compete when a combination of syntactic and visual information strongly predicted form class. These results suggest that predictive context is integrated continuously, and that previous findings supporting delayed context integration stem from weak contexts rather than delayed integration. |
Andrea E. Martin; Brian McElree A content-addressable pointer mechanism underlies comprehension of verb-phrase ellipsis Journal Article In: Journal of Memory and Language, vol. 58, no. 3, pp. 879–906, 2008. @article{Martin2008,Interpreting a verb-phrase ellipsis (VP ellipsis) requires accessing an antecedent in memory, and then integrating a representation of this antecedent into the local context. We investigated the online interpretation of VP ellipsis in an eye-tracking experiment and four speed-accuracy tradeoff experiments. To investigate whether the antecedent for a VP ellipsis is accessed with a search or direct-access retrieval process, Experiments 1 and 2 measured the effect of the distance between an ellipsis and its antecedent on the speed and accuracy of comprehension. Accuracy was lower with longer distances, indicating that interpolated material reduced the quality of retrieved information about the antecedent. However, contra a search process, distance did not affect the speed of interpreting ellipsis. This pattern suggests that antecedent representations are content-addressable and retrieved with a direct-access process. To determine whether interpreting ellipsis involves copying antecedent information into the ellipsis site, Experiments 3-5 manipulated the length and complexity of the antecedent. Some types of antecedent complexity lowered accuracy, notably, the number of discourse entities in the antecedent. However, neither antecedent length nor complexity affected the speed of interpreting the ellipsis. This pattern is inconsistent with a copy operation, and it suggests that ellipsis interpretation may involve a pointer to extant structures in memory. |
Bob McMurray; Richard N. Aslin; Michael K. Tanenhaus; Michael J. Spivey; Dana Subik Gradient sensitivity to within-category variation in words and syllables Journal Article In: Journal of Experimental Psychology: Human Perception and Performance, vol. 34, no. 6, pp. 1609–1631, 2008. @article{McMurray2008,Five experiments monitored eye movements in phoneme and lexical identification tasks to examine the effect of within-category subphonetic variation on the perception of stop consonants. Experiment 1 demonstrated gradient effects along voice-onset time (VOT) continua made from natural speech, replicating results with synthetic speech (B. McMurray, M. K. Tanenhaus, & R. N. Aslin, 2002). Experiments 2-5 used synthetic VOT continua to examine effects of response alternatives (2 vs. 4), task (lexical vs. phoneme decision), and type of token (word vs. consonant-vowel). A gradient effect of VOT in at least one half of the continuum was observed in all conditions. These results suggest that during online spoken word recognition, lexical competitors are activated in proportion to their continuous distance from a category boundary. This gradient processing may allow listeners to anticipate upcoming acoustic-phonetic information in the speech signal and dynamically compensate for acoustic variability. |
Bob McMurray; Meghan Clayards; Michael K. Tanenhaus; Richard N. Aslin Tracking the time course of phonetic cue integration during spoken word recognition Journal Article In: Psychonomic Bulletin & Review, vol. 15, no. 6, pp. 1064–1071, 2008. @article{McMurray2008a,Speech perception requires listeners to integrate multiple cues that each contribute to judgments about a phonetic category. Classic studies of trading relations assessed the weights attached to each cue but did not explore the time course of cue integration. Here, we provide the first direct evidence that asynchronous cues to voicing (/b/ vs. /p/) and manner (/b/ vs. /w/) contrasts become available to the listener at different times during spoken word recognition. Using the visual world paradigm, we show that the probability of eye movements to pictures of target and of competitor objects diverge at different points in time after the onset of the target word. These points of divergence correspond to the availability of early (voice onset time or formant transition slope) and late (vowel length) cues to voicing and manner contrasts. These results support a model of cue integration in which phonetic cues are used for lexical access as soon as they are available. |
Alexander Pollatsek; Timothy J. Slattery; Barbara J. Juhasz The processing of novel and lexicalised prefixed words in reading Journal Article In: Language and Cognitive Processes, vol. 23, no. 7-8, pp. 1133–1158, 2008. @article{Pollatsek2008,Two experiments compared how relatively long novel prefixed words (e.g., overfarm) and existing prefixed words were processed in reading. The use of novel prefixed words allows one to examine the roles of whole-word access and decompositional processing in the processing of non-novel prefixed words. The two experiments found that, although there was a large cost to novelty (e.g., gaze durations were about 100 ms longer for novel prefixedwords), the effect of the frequency of the root morpheme on fixation measures was about the same for novel and non-novel prefixed words for most measures. This finding rules out a (‘‘horse-race'') dual-route model of processing for existing prefixed words in which the whole-word and decompositional route are parallel and independent, as such a model would predict a substantially larger root frequency effect for novel words (where whole-word processes do not exist). The most likely model to explain the processing of prefixed words is a parallel interactive one. |
Ralph Radach; Lynn Huestegge; Ronan G. Reilly The role of global top-down factors in local eye-movement control in reading Journal Article In: Psychological Research, vol. 72, no. 6, pp. 675–688, 2008. @article{Radach2008,Although the development of the field of reading has been impressive, there are a number of issues that still require much more attention. One of these concerns the variability of skilled reading within the individual. This paper explores the topic in three ways: (1) it quantifies the extent to which, two factors, the specific reading task (comprehension vs. word verification) and the format of reading material (sentence vs. passage) influence the temporal aspects of reading as expressed in word-viewing durations; (2) it examines whether they also affect visuomotor aspects of eye-movement control; and (3) determine whether they can modulate local lexical processing. The results reveal reading as a dynamic, interactive process involving semi-autonomous modules, with top-down influences clearly evident in the eye-movement record. |
Kathleen Pirog Revill; Michael K. Tanenhaus; Richard N. Aslin Context and spoken word recognition in a novel lexicon Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 34, no. 5, pp. 1207–1223, 2008. @article{Revill2008,Three eye movement studies with novel lexicons investigated the role of semantic context in spoken word recognition, contrasting 3 models: restrictive access, access–selection, and continuous integration. Actions directed at novel shapes caused changes in motion (e.g., looming, spinning) or state (e.g., color, texture). Across the experiments, novel names for the actions and the shapes varied in frequency, cohort density, and whether the cohorts referred to actions (Experiment 1) or shapes with action-congruent or action-incongruent affordances (Experiments 2 and 3). Experiment 1 demonstrated effects of frequency and cohort competition from both displayed and non-displayed competitors. In Experiment 2, a biasing context induced an increase in anticipatory eye movements to congruent referents and reduced the probability of looks to incongruent cohorts, without the delay predicted by access–selection models. In Experiment 3, context did not reduce competition from non-displayed incompatible neighbors as predicted by restrictive access models. The authors conclude that the results are most consistent with continuous integration models. |
Leah Roberts; Marianne Gullberg; Peter Indefrey Online pronoun resolution in L2 discouse: L1 influence and general learner effects Journal Article In: Studies in Second Language Acquisition, vol. 30, pp. 333–357, 2008. @article{Roberts2008,This study investigates whether advanced second language (L2) learners of a nonnull subject language (Dutch) are influenced by their null subject first language (L1) (Turkish) in their offline and online resolution of subject pronouns in L2 discourse. To tease apart potential L1 effects from possible general L2 processing effects, we also tested a group of German L2 learners of Dutch who were predicted to perform like the native Dutch speakers. The two L2 groups differed in their offline interpretations of subject pronouns. The Turkish L2 learners exhibited a L1 influence, because approximately half the time they interpreted Dutch subject pronouns as they would overt pronouns in Turkish, whereas the German L2 learners performed like the Dutch controls, interpreting pronouns as coreferential with the current discourse topic. This L1 effect was not in evidence in eye-tracking data, however. Instead, the L2 learners patterned together, showing an online processing disadvantage when two potential antecedents for the pronoun were grammatically available in the discourse. This processing disadvantage was in evidence irrespective of the properties of the learners' L1 or their final interpretation of the pronoun. Therefore, the results of this study indicate both an effect of the L1 on the L2 in offline resolution and a general L2 processing effect in online subject pronoun resolution. |
Ardi Roelofs Attention, gaze shifting, and dual-task interference from phonological encoding in spoken word planning Journal Article In: Journal of Experimental Psychology: Human Perception and Performance, vol. 34, no. 6, pp. 1580–1598, 2008. @article{Roelofs2008,Controversy exists about whether dual-task interference from word planning reflects structural bottleneck or attentional control factors. Here, participants named pictures whose names could or could not be phonologically prepared, and they manually responded to arrows presented away from (Experiment 1), or superimposed onto, the pictures (Experiments 2 and 3); or they responded to tones (Experiment 4). Pictures and arrows/tones were presented at stimulus onset asynchronies of 0, 300, and 1,000 ms. Earlier research showed that vocal responding hampers auditory perception, which predicts earlier shifts of attention to the tones than to the arrows. Word planning yielded dual-task interference. Phonological preparation reduced the latencies of picture naming and gaze shifting. The preparation benefit was propagated into the latencies of the manual responses to the arrows but not to the tones. The malleability of the interference supports the attentional control account. This conclusion was corroborated by computer simulations showing that an extension of WEAVER++ (A. Roelofs, 2003) with assumptions about the attentional control of tasks quantitatively accounts for the latencies of vocal responding, gaze shifting, and manual responding. |
Ardi Roelofs Tracing attention and the activation flow in spoken word planning using eye movements Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 34, no. 2, pp. 353–368, 2008. @article{Roelofs2008a,The flow of activation from concepts to phonological forms within the word production system was examined in 3 experiments. In Experiment 1, participants named pictures while ignoring superimposed distractor pictures that were semantically related, phonologically related, or unrelated. Eye movements and naming latencies were recorded. The distractor pictures affected the latencies of gaze shifting and vocal naming. The magnitude of the phonological effects increased linearly with latency, excluding lapses of attention as the cause of the effects. In Experiment 2, no distractor effects were obtained when both pictures were named. When pictures with superimposed distractor words were named or the words were read in Experiment 3, the words influenced the latencies of gaze shifting and picture naming, but the pictures yielded no such latency effects in word reading. The picture-word asymmetry was obtained even with equivalent reading and naming latencies. The picture-picture effects suggest that activation spreads continuously from concepts to phonological forms, whereas the picture-word asymmetry indicates that the amount of activation is limited and task dependent. |
Angelika Lingnau; Jens Schwarzbach; Dirk Vorberg Adaptive strategies for reading with a forced retinal location Journal Article In: Journal of Vision, vol. 8, no. 5, pp. 1–18, 2008. @article{Lingnau2008,Forcing normal-sighted participants to use a distinct parafoveal retinal location for reading, we studied which part of the visual field is best suited to take over functions of the fovea during early stages of macular degeneration (MD). A region to the right of fixation lead to best reading performance and most natural gaze behavior, whereas reading performance was severely impaired when a region to the left or below fixation had to be used. An analysis of the underlying oculomotor behavior revealed that practice effects were accompanied by a larger number of saccades in text direction and decreased fixation durations, whereas no adjustment of saccade amplitudes was observed. We provide an explanation for the observed performance differences at different retinal locations based on the interplay of attention and eye movements. Our findings have important implications for the development of training methods for MD patients targeted at reading, suggesting that it would be beneficial for MD patients to use a region to the right of their central scotoma. |
Victor Kuperman; Raymond Bertram; R. Harald Baayen Morphological dynamics in compound processing Journal Article In: Language and Cognitive Processes, vol. 23, no. 7-8, pp. 1089–1132, 2008. @article{Kuperman2008,This paper explores the time-course of morphological processing of trimorphemic Finnish compounds. We find evidence for the parallel access to full- forms and morphological constituents diagnosed by the early effects of compound frequency, as well as early effects of left constituent frequency and family size. We also observe an interaction between compound frequency and both the left and the right constituent family sizes. Furthermore, our data show that suffixes embedded in the derived left constituent of a compound are efficiently used for establishing the boundary between compounds' constituents. The success of segmentation of a compound is demonstrably modulated by the affixal salience of the embedded suffixes. We discuss implications of these findings for current models of morphological processing and propose a new model that views morphemes, combinations of morphemes and morphological paradigms as probabilistic sources of information that are interactively used in recognition of complex words. |
Albrecht W. Inhoff; Matthew S. Solomon; Bradley A. Seymour; Ralph Radach Eye position changes during reading fixations are spatially selective Journal Article In: Vision Research, vol. 48, no. 8, pp. 1027–1039, 2008. @article{Inhoff2008,Intra-fixation location changes were measured when one-line sentences written in lower or aLtErNaTiNg case were read. Intra-fixation location changes were common and their size was normally distributed except for a relatively high proportion of fixations without a discernible location change. Location changes that did occur were systematically biased toward the right when alternating case was read. Irrespective of case type, changes of the right eye were biased toward the right at the onset of sentence reading, and this spatial bias decreased as sentence reading progressed from left to right. The left eye showed a relatively stable right-directed bias. These results show that processing demands can pull the two fixated eyes in the same direction and that the response to this pull can differ for the right and left eye. |
Albrecht W. Inhoff; Matthew S. Starr; Matthew S. Solomon; Lars Placke Eye movements during the reading of compound words and the influence of lexeme meaning Journal Article In: Memory & Cognition, vol. 36, no. 3, pp. 675–687, 2008. @article{Inhoff2008a,We examined the use of lexeme meaning during the processing of spatially unified bilexemic compound words by manipulating both the location and the word frequency of the lexeme that primarily defined the meaning of a compound (i.e., the dominant lexeme). The semantically dominant and nondominant lexemes occupied either the beginning or the ending compound word location, and the beginning and ending lexemes could be either high- or low-frequency words. Three tasks were used–lexical decision, naming, and sentence reading–all of which focused on the effects of lexeme frequency as a function of lexeme dominance. The results revealed a larger word frequency effect for the dominant lexeme in all three tasks. Eye movements during sentence reading further revealed larger word frequency effects for the dominant lexeme via several oculomotor motor measures, including the duration of the first fixation on a compound word. These findings favor theoretical conceptions in which the use of lexeme meaning is an integral part of the compound recognition process. |
Manon W. Jones; Mateo Obregón; M. Louise Kelly; Holly P. Branigan Elucidating the component processes involved in dyslexic and non-dyslexic reading fluency: An eye-tracking study Journal Article In: Cognition, vol. 109, no. 3, pp. 389–407, 2008. @article{Jones2008,The relationship between rapid automatized naming (RAN) and reading fluency is well documented (see Wolf, M. & Bowers, P.G. (1999). The double-deficit hypothesis for the developmental dyslexias. Journal of Educational Psychology, 91(3), 415-438, for a review), but little is known about which component processes are important in RAN, and why developmental dyslexics show longer latencies on these tasks. Researchers disagree as to whether these delays are caused by impaired phonological processing or whether extra-phonological processes also play a role (e.g., Clarke, P., Hulme, C., & Snowling, M. (2005). Individual differences in RAN and reading: A response timing analysis. Journal of Research in Reading, 28(2), 73-86; Wolf, M., Bowers, P.G., & Biddle, K. (2000). Naming-speed processes, timing, and reading: A conceptual review. Journal of learning disabilities, 33(4), 387-407). We conducted an eye-tracking study that manipulated phonological and visual information (as representative of extra-phonological processes) in RAN. Results from linear mixed (LME) effects analyses showed that both phonological and visual processes influence naming-speed for both dyslexic and non-dyslexic groups, but the influence on dyslexic readers is greater. Moreover, dyslexic readers' difficulties in these domains primarily emerge in a measure that explicitly includes the production phase of naming. This study elucidates processes underpinning RAN performance in non-dyslexic readers and pinpoints areas of difficulty for dyslexic readers. We discuss these findings with reference to phonological and extra-phonological hypotheses of naming-speed deficits. |
Johanna K. Kaakinen; Jukka Hyönä Perspective-driven text comprehension Journal Article In: Applied Cognitive Psychology, vol. 22, pp. 319–334, 2008. @article{Kaakinen2008,The present article reports results of an eye‐tracking experiment, which examines whether the perspective‐driven text comprehension framework applies to comprehension of narrative text. Sixty‐four participants were instructed to adopt either a burglar's or an interior designer's perspective. A pilot test showed that readers have more overlapping prior knowledge with the burglar‐relevant than with the interior designer‐relevant information of the experimental text. Participants read either a transparent text version where the (ir)relevance of text segments to the perspective was made apparent, or an opaque text version where no direct mention of the perspective was made. After reading participants wrote a free recall of the text. The results showed that perspective‐related prior knowledge modulates the perspective effects observed in on‐line text processing and that signalling of (ir)relevance helps in encoding relevant information to memory. It is concluded that the proposed framework generalizes to the on‐line comprehension of narrative texts. |
2007 |
Lisa Irmen What's in a (role) name? Formal and conceptual aspects of comprehending personal nouns Journal Article In: Journal of Psycholinguistic Research, vol. 36, no. 6, pp. 431–456, 2007. @article{Irmen2007,Two eye-tracking studies assessed effects of grammatical and conceptual gender cues in generic role name processing in German. Participants read passages about a social or occupational group introduced by way of a generic role name (e.g., Soldaten/soldiers, Künstler/artists). Later in the passage the gender of this group was specified by the anaphoric expression diese Männer/these men or diese Frauen/these women. Testing masculine generic role names of male, female or neutral conceptual gender (Exp. 1) showed that a gender mismatch between the role name's conceptual gender and the anaphor significantly slowed reading immediately before and after the anaphoric noun. A mismatch between the antecedent's grammatical gender and the anaphor slowed down the reading of the anaphoric noun itself. Testing grammatically gender-unmarked role names (Exp. 2) revealed a general male bias in participants' understanding, irrespective of grammatical or conceptual gender. The experiments extend previous findings on gender effects to non-referential role names and generic contexts. Theoretical aspects of gender and plural reference as well as gender information in mental models are discussed. |
Frank Joosten; Gert De Sutter; Denis Drieghe; Stefan Grondelaers; Robert J. Hartsuiker; Dirk Speelman Dutch collective nouns and conceptual profiling Journal Article In: Linguistics, vol. 45, no. 1, pp. 85–132, 2007. @article{Joosten2007,Collective nouns such as committee, family, or team are conceptually (and in English also syntactically) complex in the sense that they are both singular ("one") and plural ("more than one"): they refer to a multiplicity that is conceptualized as a unity. In this article, which focuses on Dutch collective nouns, it is argued that some collective nouns are rather "one", whereas others are rather "more than one". Collective nouns are shown to be different from one another in member level accessibility. Whereas all collective nouns have both a conceptual collection level ("one") and a conceptual member level ("more than one"), the latter is not always conceptually profiled (i.e., focused on) to the same extent. A gradient is sketched in which collective nouns such as bemanning ('crew') (member level highly accessible) and vereniging ('association') (member level scarcely accessible) form the extremes. Arguments in favor of the conceptual phenomenon of variable member level accessibility derive from an analysis of property distribution, from corpus research on verbal and pronominal singular-plural variation, and from a psycholinguistic eye-tracking experiment. |
Johanna K. Kaakinen; Jukka Hyönä Strategy use in the reading span test: An analysis of eye movements and reported encoding strategies Journal Article In: Memory, vol. 15, no. 6, pp. 634–646, 2007. @article{Kaakinen2007,Strategy use in the traditional reading span test was examined by recording participants' eye movements during the task (Experiment 1) and by interviewing participants about their strategy use (Experiment 2). In Experiment 1, no differences between individuals with a low, medium, and high span were observed in how they distributed processing time between task elements. In all three groups, fixation times on words up to the to-be-remembered (TBR) word became shorter and the time spent on the TBR longer as memory load in the task increased. The results of Experiment 2, however, show that span groups differ in the use of memory encoding strategies: individuals with a low span use mainly rehearsal, whereas individuals with a high span use almost exclusively semantic elaboration. The results indicate that the use of elaborative strategies may enhance span performance but that not all individuals are necessarily able to use such strategies efficiently. |
Johanna K. Kaakinen; Jukka Hyönä Perspective effects in repeated reading: An eye movement study Journal Article In: Memory & Cognition, vol. 35, no. 6, pp. 1323–1336, 2007. @article{Kaakinen2007a,The present study examined the influence of perspective instructions on online processing of expository text during repeated reading. Sixty-two participants read either a high or a low prior knowledge (HPK vs. LPK) text twice from a given perspective while their eye movements were recorded. They switched perspective before a third reading. Reading perspective affected the first-pass reading and also increased sentence wrap-up processing time in the perspective-relevant sentences. Prior knowledge facilitated the recognition of the (ir)relevance of text information and resulted in relatively earlier perspective effects in the HPK versus LPK text. Repeated reading facilitated processing, as indicated by all eye movement measures. After the perspective switch, a repetition benefit was observed for the previously relevant text information, whereas a repetition cost was found for the previously irrelevant text information. These results indicate that reading perspective and prior knowledge have a significant influence on how readers allocate visual attention during reading. |
James S. Magnuson; James A. Dixon; Michael K. Tanenhaus; Richard N. Aslin The dynamics of lexical competition during spoken word recognition Journal Article In: Cognitive Science, vol. 31, no. 1, pp. 133–156, 2007. @article{Magnuson2007,The sounds that make up spoken words are heard in a series and must be mapped rapidly onto words in memory because their elements, unlike those of visual words, cannot simultaneously exist or persist in time. Although theories agree that the dynamics of spoken word recognition are important, they differ in how they treat the nature of the competitor set-precisely which words are activated as an auditory word form unfolds in real time. This study used eye tracking to measure the impact over time of word frequency and 2 partially overlapping competitor set definitions: onset density and neighborhood density. Time course measures revealed early and continuous effects of frequency (facilitatory) and on set based similarity (inhibitory). Neighborhood density appears to have early facilitatory effects and late inhibitory effects. The late inhibitory effects are due to differences in the temporal distribution of similarity within neighborhoods. The early facilitatory effects are due to subphonemic cues that inform the listener about word length before the entire word is heard. The results support a new conception of lexical competition neighborhoods in which recognition occurs against a background of activated competitors that changes over time based on fine-grained goodness-of-fit and competition dynamics. |
Antje Nuthmann; Ralf Engbert; Reinhold Kliegl The IOVP effect in mindless reading: Experiment and modeling Journal Article In: Vision Research, vol. 47, no. 7, pp. 990–1002, 2007. @article{Nuthmann2007,Fixation durations in reading are longer for within-word fixation positions close to word center than for positions near word boundaries. This counterintuitive result was termed the Inverted-Optimal Viewing Position (IOVP) effect. We proposed an explanation of the effect based on error-correction of mislocated fixations [Nuthmann, A., Engbert, R., & Kliegl, R. (2005). Mislocated fixations during reading and the inverted optimal viewing position effect. Vision Research, 45, 2201-2217], that suggests that the IOVP effect is not related to word processing. Here we demonstrate the existence of an IOVP effect in "mindless reading", a z-string scanning task. We compare the results from experimental data with results obtained from computer simulations of a simple model of the IOVP effect and discuss alternative accounts. We conclude that oculomotor errors, which often induce mislocalized fixations, represent the most important source of the IOVP effect. |
James M. McQueen; Malte C. Viebahn Tracking recognition of spoken words by tracking looks to printed words Journal Article In: Quarterly Journal of Experimental Psychology, vol. 60, no. 5, pp. 661–671, 2007. @article{McQueen2007,Eye movements of Dutch participants were tracked as they looked at arrays of four words on a computer screen and followed spoken instructions (e.g., "Klik op het woord buffel": Click on the word buffalo). The arrays included the target (e.g., buffel), a phonological competitor (e.g., buffer, buffer), and two unrelated distractors. Targets were monosyllabic or bisyllabic, and competitors mismatched targets only on either their onset or offset phoneme and only by one distinctive feature. Participants looked at competitors more than at distractors, but this effect was much stronger for offset-mismatch than onset-mismatch competitors. Fixations to competitors started to decrease as soon as phonetic evidence disfavouring those competitors could influence behaviour. These results confirm that listeners continuously update their interpretation of words as the evidence in the speech signal unfolds and hence establish the viability of the methodology of using eye movements to arrays of printed words to track spoken-word recognition. |
Antje S. Meyer; Eva Belke; Christine Häcker; Linda Mortensen Use of word length information in utterance planning Journal Article In: Journal of Memory and Language, vol. 57, no. 2, pp. 210–231, 2007. @article{Meyer2007,Griffin [Griffin, Z. M. (2003). A reversed length effect in coordinating the preparation and articulation of words in speaking. Psychonomic Bulletin & Review, 10, 603-609.] found that speakers naming object pairs spent more time before utterance onset looking at the second object when the first object name was short than when it was long. She proposed that this reversed length effect arose because the speakers' decision when to initiate an utterance was based, in part, on their estimate of the spoken duration of the first object name and the time available during its articulation to plan the second object name. In Experiment 1 of the present study, participants named object pairs. They spent more time looking at the first object when its name was monosyllabic than when it was trisyllabic, and, as in Griffin's study, the average gaze-speech lag (the time between the end of the gaze to the first object and onset of its name, which corresponds closely to the pre-speech inspection time for the second object) showed a reversed length effect. Experiments 2 and 3 showed that this effect was not due to a trade-off between the time speakers spent looking at the first and second object before speech onset. Experiment 4 yielded a reversed length effect when the second object was replaced by a symbol (x or +), which the participants had to categorise. We propose a novel account of the reversed length effect, which links it to the incremental nature of phonological encoding and articulatory planning rather than the speaker's estimate of the length of the first object name. |
Reinhold Kliegl; Sarah Risse; Jochen Laubrock Preview benefit and parafoveal-on-foveal effects from word n + 2 Journal Article In: Journal of Experimental Psychology: Human Perception and Performance, vol. 33, no. 5, pp. 1250–1255, 2007. @article{Kliegl2007,Using the gaze-contingent boundary paradigm with the boundary placed after word n, the experiment manipulated preview of word n + 2 for fixations on word n. There was no preview benefit for 1st-pass reading on word n + 2, replicating the results of K. Rayner, B. J. Juhasz, and S. J. Brown (2007), but there was a preview benefit on the 3-letter word n + 1, that is, after the boundary but before word n + 2. Additionally, both word n + 1 and word n + 2 exhibited parafoveal-on-foveal effects on word n. Thus, during a fixation on word n and given a short word n + 1, some information is extracted from word n + 2, supporting the hypothesis of distributed processing in the perceptual span. |
Pia Knoeferle; Matthew W. Crocker The influence of recent scene events on spoken comprehension: Evidence from eye movements Journal Article In: Journal of Memory and Language, vol. 57, no. 4, pp. 519–543, 2007. @article{Knoeferle2007,Evidence from recent experiments that monitored attention in clipart scenes during spoken comprehension suggests that people preferably rely on non-stereotypical depicted events over stereotypical thematic knowledge for incremental interpretation. The Coordinated Interplay Account [Knoeferle, P., & Crocker, M. W. (2006). The coordinated interplay of scene, utterance, and world knowledge: evidence from eye tracking. Cognitive Science, 30, 481-529.] accounts for this preference through referential processing (e.g., the verb mediates a depicted event) and the preferred use of scene event information that is associated with the referent (e.g., the agent of the depicted event). Three eye-tracking experiments examined the generality of this account. While the rapid use of depicted events was replicated in all three studies, the preference to rely on them was modulated by the decay of events that were no longer co-present. Our findings motivate the extension of the Coordinated Interplay Account with an explicit working memory. The coordinated interplay mechanism together with working memory and decay, is shown to account for the influence of scene-derived versus stored knowledge both when events are co-present and when they have recently been perceived. |
Ardi Roelofs Attention and gaze control in picture naming, word reading, and word categorizing Journal Article In: Journal of Memory and Language, vol. 57, no. 2, pp. 232–251, 2007. @article{Roelofs2007,The trigger for shifting gaze between stimuli requiring vocal and manual responses was examined. Participants were presented with picture-word stimuli and left- or right-pointing arrows. They vocally named the picture (Experiment 1), read the word (Experiment 2), or categorized the word (Experiment 3) and shifted their gaze to the arrow to manually indicate its direction. The experiments showed that the temporal coordination of vocal responding and gaze shifting depends on the vocal task and, to a lesser extent, on the type of relationship between picture and word. There was a close temporal link between gaze shifting and manual responding, suggesting that the gaze shifts indexed shifts of attention between the vocal and manual tasks. Computer simulations showed that a simple extension of WEAVER++ [Roelofs, A. (1992). A spreading-activation theory of lemma retrieval in speaking. Cognition, 42, 107-142.; Roelofs, A. (2003). Goal-referenced selection of verbal action: modeling attentional control in the Stroop task. Psychological Review, 110, 88-125.] with assumptions about attentional control in the coordination of vocal responding, gaze shifting, and manual responding quantitatively accounts for the key findings. |
Annie Roy-Charland; Jean Saint-Aubin; Raymond M. Klein; Michael A. Lawrence Eye movements as direct tests of the GO model for the missing-letter effect Journal Article In: Perception and Psychophysics, vol. 69, no. 3, pp. 324–337, 2007. @article{RoyCharland2007a,When asked to detect target letters while reading a text, participants miss more letters in frequently occurring function words than in less frequent content words. To account for this pattern of results, known as the missing-letter effect, Greenberg, Healy, Koriat, and Kreiner proposed the guidance-organization (GO) model, which integrates the two leading models of the missing-letter effect while incorporating innovative assumptions based on the literature on eye movements during reading. The GO model was evaluated by monitoring the eye movements of participants while they searched for a target letter in a continuous text display. Results revealed the usual missing-letter effect, and many empirical benchmark effects in eye movement literature were observed. However, contrary to the predictions of the GO model, response latencies were longer for function words than for content words. Alternative models are discussed that can accommodate both error and response latency data for the missing-letter effect. |
Kerry Ledoux; Peter C. Gordon; C. Christine Camblin; Tamara Y. Swaab Coreference and lexical repetition: Mechanisms of discourse integration Journal Article In: Memory & Cognition, vol. 35, no. 4, pp. 801–815, 2007. @article{Ledoux2007,The use of repeated expressions to establish coreference allows an investigation of the relationship between basic processes of word recognition and higher level language processes that involve the integration of information into a discourse model. In two experiments on reading, we used eye tracking and event-related potentials to examine whether repeated expressions that are coreferential within a local discourse context show the kind of repetition priming that is shown in lists of words. In both experiments, the effects of lexical repetition were modulated by the effects of local discourse context that arose from manipulations of the linguistic prominence of the antecedent of a coreferentially repeated name. These results are interpreted within the context of discourse prominence theory, which suggests that processes of coreferential interpretation interact with basic mechanisms of memory integration during the construction of a model of discourse. |
Yoonhyoung Lee; Hanjung Lee; Peter C. Gordon Linguistic complexity and information structure in Korean: Evidence from eye-tracking during reading Journal Article In: Cognition, vol. 104, no. 3, pp. 495–534, 2007. @article{Lee2007,The nature of the memory processes that support language comprehension and the manner in which information packaging influences online sentence processing were investigated in three experiments that used eye-tracking during reading to measure the ease of understanding complex sentences in Korean. All three experiments examined reading of embedded complement sentences; the third experiment additionally examined reading of sentences with object-modifying, object-extracted relative clauses. In Korean, both of these structures place two NPs with nominative case marking early in the sentence, with the embedded and matrix verbs following later. The type (pronoun, name or description) of these two critical NPs was varied in the experiments. When the initial NPs were of the same type, comprehension was slowed after participants had read the sentence-final verbs, a finding that supports the view that working memory in language comprehension is constrained by similarity-based interference during the retrieval of information necessary to determine the syntactic or semantic relations between noun phrases and verb phrases. Ease of comprehension was also influenced by the association between type of NP and syntactic position, with the best performance being observed when more definite NPs (pronouns and names) were in a prominent syntactic position (e.g., matrix subject) and less definite NPs (descriptions) were in a non-prominent syntactic position (embedded subject). This pattern provides evidence that the interpretation of sentences is facilitated by consistent packaging of information in different linguistic elements. |
Falk Huettig; Gerry T. M. Altmann Visual-shape competition during language-mediated attention is based on lexical input and not modulated by contextual appropriateness Journal Article In: Visual Cognition, vol. 15, no. 8, pp. 985–1018, 2007. @article{Huettig2007,Visual attention can be directed immediately, as a spoken word unfolds, towards conceptually related but nonassociated objects, even if they mismatch on other dimensions that would normally determine which objects in the scene were appropriate referents for the unfolding word (Huettig & Altmann, 2005). Here we demonstrate that the mapping between language and concurrent visual objects can also be mediated by visual-shape relations. On hearing "snake", participants directed overt attention immediately, within a visual display depicting four objects, to a picture of an electric cable, although participants had viewed the visual display with four objects for approximately 5 s before hearing the target word-sufficient time to recognize the objects for what they were. The time spent fixating the cable correlated significantly with ratings of the visual similarity between snakes in general and this particular cable. Importantly, with sentences contextually biased towards the concept snake, participants looked at the snake well before the onset of "snake'', but they did not look at the visually similar cable until hearing "snake''. Finally, we demonstrate that such activation can, under certain circumstances (e. g., during the processing of dominant meanings of homonyms), constrain the direction of visual attention even when it is clearly contextually inappropriate. We conclude that language-mediated attention can be guided by a visual match between spoken words and visual objects, but that such a match is based on lexical input and may not be modulated by contextual appropriateness. |
Falk Huettig; James M. McQueen The tug of war between phonological, semantic and shape information in language-mediated visual search Journal Article In: Journal of Memory and Language, vol. 57, no. 4, pp. 460–482, 2007. @article{Huettig2007a,Experiments 1 and 2 examined the time-course of retrieval of phonological, visual-shape and semantic knowledge as Dutch participants listened to sentences and looked at displays of four pictures. Given a sentence with beker, 'beaker', for example, the display contained phonological (a beaver, bever), shape (a bobbin, klos), and semantic (a fork, vork) competitors. When the display appeared at sentence onset, fixations to phonological competitors preceded fixations to shape and semantic competitors. When display onset was 200 ms before (e.g.) beker, fixations were directed to shape and then semantic competitors, but not phonological competitors. In Experiments 3 and 4, displays contained the printed names of the previously-pictured entities; only phonological competitors were fixated preferentially. These findings suggest that retrieval of phonological, shape and semantic knowledge in the spoken-word and picture-recognition systems is cascaded, and that visual attention shifts are co-determined by the time-course of retrieval of all three knowledge types and by the nature of the information in the visual environment. |
Gerry T. M. Altmann; Yuki Kamide In: Journal of Memory and Language, vol. 57, no. 4, pp. 502–518, 2007. @article{Altmann2007,Two experiments explored the representational basis for anticipatory eye movements. Participants heard 'the man will drink ...' or 'the man has drunk ...' (Experiment 1) or 'the man will drink all of ...' or 'the man has drunk all of ...' (Experiment 2). They viewed a concurrent scene depicting a full glass of beer and an empty wine glass (amongst other things). There were more saccades towards the empty wine glass in the past tensed conditions than in the future tense conditions; the converse pattern obtained for looks towards the full glass of beer. We argue that these anticipatory eye movements reflect sensitivity to objects' affordances, and develop an account of the linkage between language processing and visual attention that can account not only for looks towards named objects, but also for those cases (including anticipatory eye movements) where attention is directed towards objects that are not being named. |
Manabu Arai; Roger P. G. Gompel; Christoph Scheepers Priming ditransitive structures in comprehension Journal Article In: Cognitive Psychology, vol. 54, no. 3, pp. 218–250, 2007. @article{Arai2007,Many studies have shown evidence for syntactic priming during language production (e.g., Bock, 1986). It is often assumed that comprehension and production share similar mechanisms and that priming also occurs during comprehension (e.g., Pickering & Garrod, 2004). Research investigating priming during comprehension (e.g., Branigan, Pickering, & McLean, 2005; Scheepers & Crocker, 2004) has mainly focused on syntactic ambiguities that are very different from the meaning-equivalent structures used in production research. In two experiments, we investigated whether priming during comprehension occurs in ditransitive sentences similar to those used in production research. When the verb was repeated between prime and target, we observed a priming effect similar to that in production. However, we observed no evidence for priming when the verbs were different. Thus, priming during comprehension occurs for very similar structures as priming during production, but in contrast to production, the priming effect is completely lexically dependent. |
Jennifer E. Arnold; Carla L. Hudson Kam; Michael K. Tanenhaus If you say thee uh you are describing something hard: The on-line attribution of disfluency during reference comprehension Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 33, no. 5, pp. 914–930, 2007. @article{Arnold2007,Eye-tracking and gating experiments examined reference comprehension with fluent (Click on the red. . .) and disfluent (Click on [pause] thee uh red . . .) instructions while listeners viewed displays with 2 familiar (e.g., ice cream cones) and 2 unfamiliar objects (e.g., squiggly shapes). Disfluent instructions made unfamiliar objects more expected, which influenced listeners' on-line hypotheses from the onset of the color word. The unfamiliarity bias was sharply reduced by instructions that the speaker had object agnosia, and thus difficulty naming familiar objects (Experiment 2), but was not affected by intermittent sources of speaker distraction (beeps and construction noises; Experiments 3). The authors conclude that listeners can make situation-specific inferences about likely sources of disfluency, but there are some limitations to these attributions. |
Jean-Baptiste Bernard; Anne-Catherine Scherlen; Eric Castet Page mode reading with simulated scotomas: A modest effect of interline spacing on reading speed Journal Article In: Vision Research, vol. 47, no. 28, pp. 3447–3459, 2007. @article{Bernard2007,Crowding is thought to be one potent limiting factor of reading in peripheral vision. While several studies investigated how crowding between horizontally adjacent letters or words can influence eccentric reading, little attention has been paid to the influence of vertically adjacent lines of text. The goal of this study was to examine the dependence of page mode reading performance (speed and accuracy) on interline spacing. A gaze-contingent visual display was used to simulate a visual central scotoma while normally sighted observers read meaningful French sentences following MNREAD principles. The sensitivity of this new material to low-level factors was confirmed by showing strong effects of perceptual learning, print size and scotoma size on reading performance. In contrast, reading speed was only slightly modulated by interline spacing even for the largest range tested: a 26% gain for a 178% increase in spacing. This modest effect sharply contrasts with the dramatic influence of vertical word spacing found in a recent RSVP study. This discrepancy suggests either that vertical crowding is minimized when reading meaningful sentences, or that the interaction between crowding and other factors such as attention and/or visuo-motor control is dependent on the paradigm used to assess reading speed (page vs. RSVP mode). |
Christine Burton; Meredyth Daneman Compensating for a limited working memory capacity during reading: Evidence from eye movements Journal Article In: Reading Psychology, vol. 28, no. 2, pp. 163–186, 2007. @article{Burton2007,Although working memory capacity is an important contributor to reading comprehension performance, it is not the only contributor. Studies have shown that epistemic knowledge (or knowledge about knowledge and learning) is related to comprehension success and may enable low-span readers to compensate for their limited resources. By comparing the eye movements of epistemically mature versus epistemically naïve low-span readers, this study provided evidence for how the compensation occurs. Metacognitively mature low-span readers spent more time engaged in selective backtracking to unfamiliar and task-relevant text information. These selective look-backs would have reinstated the difficult and important information into working memory, thereby allowing these readers to offset some of the disadvantages of a limited temporary storage capacity. |
Ian Cunnings; Harald Clahsen The time-course of morphological constraints: Evidence from eye-movements during reading Journal Article In: Cognition, vol. 104, no. 3, pp. 476–494, 2007. @article{Cunnings2007,Lexical compounds in English are constrained in that the non-head noun can be an irregular but not a regular plural (e.g. mice eater vs. *rats eater), a contrast that has been argued to derive from a morphological constraint on modifiers inside compounds. In addition, bare nouns are preferred over plural forms inside compounds (e.g. mouse eater vs. mice eater), a contrast that has been ascribed to the semantics of compounds. Measuring eye-movements during reading, this study examined how morphological and semantic information become available over time during the processing of a compound. We found that the morphological constraint affected both early and late eye-movement measures, whereas the semantic constraint for singular non-heads only affected late measures of processing. These results indicate that morphological information becomes available earlier than semantic information during the processing of compounds. |
Delphine Dahan; M. Gareth Gaskell The temporal dynamics of ambiguity resolution: Evidence from spoken-word recognition Journal Article In: Journal of Memory and Language, vol. 57, no. 4, pp. 483–501, 2007. @article{Dahan2007,Two experiments examined the dynamics of lexical activation in spoken-word recognition. In both, the key materials were pairs of onset-matched picturable nouns varying in frequency. Pictures associated with these words, plus two distractor pictures were displayed. A gating task, in which participants identified the picture associated with gradually lengthening fragments of spoken words, examined the availability of discriminating cues in the speech waveforms for these pairs. There was a clear frequency bias in participants' responses to short, ambiguous fragments, followed by a temporal window in which discriminating information gradually became available. A visual-world experiment examined speech contingent eye movements. Fixation analyses suggested that frequency influences lexical competition well beyond the point in the speech signal at which the spoken word has been fully discriminated from its competitor (as identified using gating). Taken together, these data support models in which the processing dynamics of lexical activation are a limiting factor on recognition speed, over and above the temporal unfolding of the speech signal. |
Meredyth Daneman; Tracy Lennertz; Brenda Hannon Shallow semantic processing of text: Evidence from eye movements Journal Article In: Language and Cognitive Processes, vol. 22, no. 1, pp. 83–105, 2007. @article{Daneman2007,Evidence for shallow semantic processing has depended on paradigms that required readers to explicitly report whether they noticed an anomalous noun phrase (NP) after reading text such as 'Amanda was bouncing all over because she had taken too many tranquillizing sedatives in one day'. We replicated previous research by showing that readers frequently fail to report the anomaly, and that less-skilled readers have particular difficulty reporting locally anomalous NPs such as tranquillizing stimulants. In addition, we examined the time course of anomaly detection by monitoring readers' eye movements for spontaneous disruptions when encountering the anomalous NPs. The eye fixation data provided evidence for on-line detection of anomalies; however, the detection was delayed. Readers who later reported the anomaly did not spend longer processing the anomalous NP when first encountering it; however, they did spend longer refixating it. Our results challenge orthodox models of comprehension that assume that semantic analysis is exhaustive and complete. |
Denis Drieghe; Timothy Desmet; Marc Brysbaert How important are linguistic factors in word skipping during reading? Journal Article In: British Journal of Psychology, vol. 98, no. 1, pp. 157–171, 2007. @article{Drieghe2007,The probability of skipping a word is influenced by its processing ease. For instance, a word that is predictable from the preceding context is skipped more often than an unpredictable word. A meta-analysis of studies examining this predictability effect reported effect sizes ranging from 0 to 13%, with an average of 8%. One study does not fit within this picture and reported 23% more skipping of Dutch pronouns in sentences in which the pronoun had no disambiguating value (e.g. 'Mary was envious of Helen because she never looked so good') than in sentences where it did have a disambiguating value (e.g. 'Mary was envious of Albert because she never looked so good'). We re-examined this ambiguity in Dutch using a task that more closely resembles normal reading and observed only a 9% difference in skipping of the pronoun, bringing this linguistic effect in line with the other findings. |
C. Christine Camblin; Peter C. Gordon; Tamara Y. Swaab The interplay of discourse congruence and lexical association during sentence processing: Evidence from ERPs and eye tracking Journal Article In: Journal of Memory and Language, vol. 56, no. 1, pp. 103–128, 2007. @article{Camblin2007,Five experiments used ERPs and eye tracking to determine the interplay of word-level and discourse-level information during sentence processing. Subjects read sentences that were locally congruent but whose congruence with discourse context was manipulated. Furthermore, critical words in the local sentence were preceded by a prime word that was associated or not. Violations of discourse congruence had early and lingering effects on ERP and eye-tracking measures. This indicates that discourse representations have a rapid effect on lexical semantic processing even in locally congruous texts. In contrast, effects of association were more malleable: Very early effects of associative priming were only robust when the discourse context was absent or not cohesive. Together these results suggest that the global discourse model quickly influences lexical processing in sentences, and that spreading activation from associative priming does not contribute to natural reading in discourse contexts. |
Aoju Chen; Els Den Os; Jan Peter De Ruiter Pitch accent type matters for online processing of information status: Evidence from natural and synthetic speech Journal Article In: The Linguistic Review, vol. 24, no. 2-3, pp. 317–344, 2007. @article{Chen2007,Adopting an eyetracking paradigm, we investigated the role of H*L, L*HL, L*H, H*LH, and deaccentuation at the intonational phrase-final position in online processing of information status in British English in natural speech. The role of H*L, L*H and deaccentuation was also examined in diphonesynthetic speech. It was found that H*L and L*HL create a strong bias towards newness, whereas L*H, like deaccentuation, creates a strong bias towards givenness. In synthetic speech, the same effect was found for H*L, L*H and deaccentuation, but it was delayed. The delay may not be caused entirely by the difference in the segmental quality between synthetic and natural speech. The pitch accent H*LH, however, appears to bias participants' interpretation to the target word, independent of its information status. This finding was explained in the light of the effect of durational information at the segmental level on word recognition. © Walter de Gruyter 2007. |
Ed H. Chi; Michelle Gumbrecht; Lichan Hong Visual foraging of highlighted text: An eye-tracking study Journal Article In: Human-Computer Interaction, pp. 589–598, 2007. @article{Chi2007,The wide availability of digital reading material online is causing a major shift in everyday reading activities. Readers are skimming instead of reading in depth [Nielson 1997]. Highlights are increasingly used in digital interfaces to direct attention toward relevant passages within texts. In this paper, we study the eye-gaze behavior of subjects using both keyword highlighting and ScentHighlights [Chi et al. 2005]. In this first eye-tracking study of highlighting interfaces, we show that there is direct evidence of the von Restorff isolation effect [VonRestorff 1933] in the eye-tracking data, in that subjects focused on highlighted areas when highlighting cues are present. The results point to future design possibilities in highlighting interfaces. |
Paola E. Dussias; Nuria Sagarra The effect of exposure on syntactic parsing in Spanish - English bilinguals Journal Article In: Bilingualism: Language and Cognition, vol. 10, no. 1, pp. 101–116, 2007. @article{Dussias2007,An eye tracking experiment examined how exposure to a second language (L2) influences sentence parsing in the first language. Forty-four monolingual Spanish speakers, 24 proficient Spanish - English bilinguals with limited immersion experience in the L2 environment and 20 proficient Spanish - English bilinguals with extensive L2 immersion experience read temporarily ambiguous constructions. The ambiguity concerned whether a relative clause (RC) that appeared after a complex noun phrase (NP) was interpreted as modifying the first or the second noun in the complex NP (El policía arrestó a la hermana del criado que estaba enferma desde hacía tiempo). The results showed that whereas the Spanish monolingual speakers and the Spanish - English bilinguals with limited exposure reliably attached the relative clause to the first noun, the Spanish - English bilingual with extensive exposure attached the relative to the second noun. Results are discussed in terms of models of sentence parsing most consistent with the findings. © 2007 Cambridge University Press. |
Wouter Duyck; Eva Van Assche; Denis Drieghe; Robert J. Hartsuiker Visual word recognition by bilinguals in a sentence context: Evidence for nonselective lexical access Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 33, no. 4, pp. 663–679, 2007. @article{Duyck2007,Recent research on bilingualism has shown that lexical access in visual word recognition by bilinguals is not selective with respect to language. In the present study, the authors investigated language-independent lexical access in bilinguals reading sentences, which constitutes a strong unilingual linguistic context. In the first experiment, Dutch-English bilinguals performing a 2nd language (L2) lexical decision task were faster to recognize identical and nonidentical cognate words (e.g., banaan-banana) presented in isolation than control words. A second experiment replicated this effect when the same set of cognates was presented as the final words of low-constraint sentences. In a third experiment that used eyetracking, the authors showed that early target reading time measures also yield cognate facilitation but only for identical cognates. These results suggest that a sentence context may influence, but does not nullify, cross-lingual lexical interactions during early visual word recognition by bilinguals. |
Géry D'Ydewalle; Wim De Bruycker Eye movements of children and adults while reading television subtitles Journal Article In: European Psychologist, vol. 12, no. 3, pp. 196–205, 2007. @article{DYdewalle2007,Eye movements of children (Grade 5–6) and adults were monitored while they were watching a foreign language movie with either standard (foreign language soundtrack and native language subtitling) or reversed (foreign language subtitles and native language soundtrack) subtitling. With standard subtitling, reading behavior in the subtitle was observed, but there was a difference between one- and two-line subtitles. As two lines of text contain verbal information that cannot easily be inferred from the pictures on the screen, more regular reading occurred; a single text line is often redundant to the information in the picture, and accordingly less reading of one-line text was apparent. Reversed subtitling showed even more irregular reading patterns (e.g., more subtitles skipped, fewer fixations, longer latencies). No substantial age differences emerged, except that children took longer to shift attention to the subtitle at its onset, and showed longer fixations and shorter saccades in the text. On the whole, the results demonstrated the flexibility of the attentional system and its tuning to the several information sources available (image, soundtrack, and subtitles). |
Julie A. Van Dyke Interference effects from grammatically unavailable constituents during sentence processing Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 33, no. 2, pp. 407–430, 2007. @article{Dyke2007,Evidence from 3 experiments reveals interference effects from structural relationships that are inconsis- tent with any grammatical parse of the perceived input. Processing disruption was observed when items occurring between a head and a dependent overlapped with either (or both) syntactic or semantic features of the dependent. Effects of syntactic interference occur in the earliest online measures in the region where the retrieval of a long-distance dependent occurs. Semantic interference effects occur in later online measures at the end of the sentence. Both effects endure in offline comprehension measures, suggesting that interfering items participate in incorrect interpretations that resist reanalysis. The data are discussed in terms of a cue-based retrieval account of parsing, which reconciles the fact that the parser must violate the grammar in order for these interference effects to occur. Broader implications of this research indicate a need for a precise specification of the interface between the parsing mechanism and the memory system that supports language comprehension. |
Stephani Foraker; Brian McElree The role of prominence in pronoun resolution: Active versus passive representations Journal Article In: Journal of Memory and Language, vol. 56, no. 3, pp. 357–383, 2007. @article{Foraker2007,A prominent antecedent facilitates anaphor resolution. Speed-accuracy tradeoff modeling in Experiments 1 and 3 indicated that clefting did not affect the speed of accessing an antecedent representation, which is inconsistent with claims that discourse-focused information is actively maintained in focal attention [e.g., Gundel, J. K. (1999). On different kinds of focus. In P. Bosch & R. van der Sandt, (Eds.), Focus: Linguistic, cognitive, and computational perspectives. Cambridge: Cambridge University Press]. Rather, clefting simply increased the likelihood of retrieving the antecedent representation, suggesting that clefting only increases the strength of a representation in memory. Eye fixation measures in Experiment 2 showed that clefting did not affect early bonding of the pronoun and antecedent, but did ease later integration. Collectively, the results indicate that clefting made antecedent representations more distinctive in working memory, hence more available for subsequent discourse operations. Pronoun type also affected resolution processes. Gendered pronouns (he or she) were interpreted more accurately than an ungendered pronoun (it), and in one case, earlier in time-course. We argue that both effects are due to the greater ambiguity of it, as a cue to retrieve the correct antecedent representation. © 2006 Elsevier Inc. All rights reserved. |
Adrian Staub The parser doesn't ignore intransitivity, after all Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 33, no. 3, pp. 550–569, 2007. @article{Staub2007,Several previous studies (B. C. Adams, C. Clifton, & D. C. Mitchell, 1998; D. C. Mitchell, 1987; R. P. G. van Gompel & M. J. Pickering, 2001) have explored the question of whether the parser initially analyzes a noun phrase that follows an intransitive verb as the verb's direct object. Three eye-tracking experiments examined this issue in more detail. Experiment 1 replicated the finding that readers experience difficulty on this noun phrase in normal reading and found that this difficulty occurs even with intransitive verbs for which a direct object is categorically prohibited. Experiment 2, however, demonstrated that this effect is not due to syntactic misanalysis but to disruption that occurs when a comma is absent at a subordinate clause/main clause boundary. Experiment 3 replicated the finding (M. J. Pickering & M. J. Traxler, 2003; M. J. Traxler & M. J. Pickering, 1996) that when a noun phrase "filler" is an implausible direct object for an optionally transitive relative clause verb, processing difficulty results; however, there was no evidence for such difficulty when the relative clause verb was strictly intransitive. Taken together, the 3 experiments undermine the support for the claim that the parser initially ignores a verb's subcategorization restrictions. |
Yung-Chi Sung; Da-Lun Tang Unconscious processing embedded in conscious processing: Evidence from gaze time on Chinese sentence reading Journal Article In: Consciousness and Cognition, vol. 16, no. 2, pp. 339–348, 2007. @article{Sung2007,The current study aims to separate conscious and unconscious behaviors by employing both online and offline measures while the participants were consciously performing a task. Using an eye-movement tracking paradigm, we observed participants' response patterns for distinguishing within-word-boundary and across-word-boundary reverse errors while reading Chinese sentences (also known as the "word inferiority effect"). The results showed that when the participants consciously detected errors, their gaze time for target words associated with across-word-boundary reverse errors was significantly longer than that for targets words associated with within-word-boundary reverse errors. Surprisingly, the same gaze time pattern was found even when the readers were not consciously aware of the reverse errors. The results were statistically robust, providing converging evidence for the feasibility of our experimental paradigm in decoupling offline behaviors and the online, automatic, and unconscious aspects of cognitive processing in reading. |
Miia Sainio; Jukka Hyönä; Kazuo Bingushi; Raymond Bertram The role of interword spacing in reading Japanese: An eye movement study Journal Article In: Vision Research, vol. 47, no. 20, pp. 2575–2584, 2007. @article{Sainio2007,The present study investigated the role of interword spacing in a naturally unspaced language, Japanese. Eye movements were registered of native Japanese readers reading pure Hiragana (syllabic) and mixed Kanji-Hiragana (ideographic and syllabic) text in spaced and unspaced conditions. Interword spacing facilitated both word identification and eye guidance when reading syllabic script, but not when the script contained ideographic characters. We conclude that in reading Hiragana interword spacing serves as an effective segmentation cue. In contrast, spacing information in mixed Kanji-Hiragana text is redundant, since the visually salient Kanji characters serve as effective segmentation cues by themselves. |
Ulrich W. Weger; Albrecht W. Inhoff Long-range regressions to previously read words are guided by spatial and verbal memory Journal Article In: Memory & Cognition, vol. 35, no. 6, pp. 1293–1306, 2007. @article{Weger2007,To examine the nature of the information that guides eye movements to previously read text during reading (regressions), we used a relatively novel technique to request a regression to a particular target word when the eyes reached a predefined location during sentence reading. A regression was to be directed to a close or a distant target when either the first or the second line of a complex two-line sentence was read. In addition, conditions were created that pitted effects of spatial and linguistic distance against each other. Initial regressions were more accurate when the target was spatially near, and effects of spatial distance dominated effects of verbal distance. Initial regressions rarely moved the eyes onto the target, however, and subsequent "corrective" regressions that homed in on the target were subject to general linguistic processing demands, being more accurate during first-line reading than during second-line reading. The results suggest that spatial and verbal memory guide regressions in reading. Initial regressions are primarily guided by fixation-centered spatial memory, and corrective regressions are primarily guided by linguistic knowledge. |
2006 |
Meredyth Daneman; Brenda Hannon; Christine Burton Are There Age-Related Differences in Shallow Semantic Processing of Text? Evidence From Eye Movements Journal Article In: Discourse Processes, vol. 42, no. 2, pp. 177–203, 2006. @article{Daneman2006,After reading text such as Amanda was bouncing all over because she had taken too many tranquilizing sedatives in one day, young adult readers frequently fail to report that they noticed the anomalous noun phrase (NP). Although young readers of all skill levels are susceptible to this kind of shallow semantic processing, less-skilled readers are more susceptible and have particular difficulty detecting locally anomalous NPs such as tranquilizing stimulants. This article explores whether aging has a similar impact on a reader's propensity toward shallow semantic processing. Postreading responses showed that older readers frequently failed to report the anomalous NPs, but no more frequently than did younger readers. The eye-fixation behavior revealed that older readers actually detected the locally coherent anomalous NPs (e.g., tranquilizing sedatives) sooner than did younger readers, but had to allocate disproportionately more processing resources looking back to the locally incoherent anomalous NPs (tranquilizing stimulants) to achieve comparable levels of detection success as their younger counterparts. |
Sarah C. Creel; Michael K. Tanenhaus; Richard N. Aslin Consequences of lexical stress on learning an artificial lexicon Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 32, no. 1, pp. 15–32, 2006. @article{Creel2006,Four experiments examined effects of lexical stress on lexical access for recently learned words. Participants learned artificial lexicons (48 words) containing phonologically similar items and were tested on their knowledge in a 4-alternative forced-choice (4AFC) referent-selection task. Lexical stress differences did not reduce confusions between cohort items: KAdazu and kaDAzeI were confused with one another in a 4AFC task and in gaze fixations as often as BOsapeI and BOsapaI. However, lexical stress did affect the relative likelihood of stress-initial confusions when words were embedded in running nonsense speech. Words with medial stress, regardless of initial vowel quality, were more prone to confusions than words with initial stress. The authors concluded that noninitial stress, particularly when word segmentation is difficult, may serve as “noise” that alters lexical learning and lexical access. |
Michael D. Crossland; Gary S. Rubin Eye movements and reading in macular disease: Further support for the shrinking perceptual span hypothesis Journal Article In: Vision Research, vol. 46, no. 4, pp. 590–597, 2006. @article{Crossland2006,Reduced perceptual span is one factor which limits reading speed in patients with macular disease. This study measured the perceptual span and the number of saccades to locate a target in 18 patients with macular disease and seven control subjects on two occasions separated by up to 12 months. Perceptual span changed by up to two letters. Changes in perceptual span were significantly related to changes in reading speed (r2= 0.43, p < 0.005), and were independent of changes in the number of saccades used to observe a target (r2= 0.003 |
Anne Cutler; Andrea Weber; Takashi Otake Asymmetric mapping from phonetic to lexical representations in second-language listening Journal Article In: Journal of Phonetics, vol. 34, no. 2, pp. 269–284, 2006. @article{Cutler2006,The mapping of phonetic information to lexical representations in second-language (L2) listening was examined using an eyetracking paradigm. Japanese listeners followed instructions in English to click on pictures in a display. When instructed to click on a picture of a rocket, they experienced interference when a picture of a locker was present, that is, they tended to look at the locker instead. However, when instructed to click on the locker, they were unlikely to look at the rocket. This asymmetry is consistent with a similar asymmetry previously observed in Dutch listeners' mapping of English vowel contrasts to lexical representations. The results suggest that L2 listeners may maintain a distinction between two phonetic categories of the L2 in their lexical representations, even though their phonetic processing is incapable of delivering the perceptual discrimination required for correct mapping to the lexical distinction. At the phonetic processing level, one of the L2 categories is dominant; the present results suggest that dominance is determined by acoustic-phonetic proximity to the nearest L1 category. At the lexical processing level, representations containing this dominant category are more likely than representations containing the non-dominant category to be correctly contacted by the phonetic input. |
Timothy Desmet; Constantijn De Baecke; Denis Drieghe; Marc Brysbaert; Wietske Vonk Relative clause attachment in Dutch: On-line comprehension corresponds to corpus frequencies when lexical variables are taken into account Journal Article In: Language and Cognitive Processes, vol. 21, no. 4, pp. 453–485, 2006. @article{Desmet2006,Desmet, Brysbaert, and De Baecke (2002a) showed that the production of relative clauses following two potential attachment hosts (e.g., 'Someone shot the servant of the actress who was on the balcony') was influenced by the animacy of the first host. These results were important because they refuted evidence from Dutch against experience-based accounts of syntactic ambiguity resolution, such as the tuning hypothesis. However, Desmet et al. did not provide direct evidence in favour of tuning, because their study focused on production and did not include reading experiments. In the present paper this line of research was extended. A corpus analysis and an eye-tracking experiment revealed that when taking into account lexical properties of the NP host sites (i.e., animacy and concreteness) the frequency pattern and the on-line comprehension of the relative clause attachment ambiguity do correspond. The implications for exposure-based accounts of sentence processing are discussed. |
Peter C. Gordon; Randall Hendrick; Marcus L. Johnson; Yoonhyoung Lee Similarity-based interference during language comprehension: Evidence from eye tracking during reading Journal Article In: Journal of Experimental Psychology: Learning, Memory, and Cognition, vol. 32, no. 6, pp. 1304–1321, 2006. @article{Gordon2006,The nature of working memory operation during complex sentence comprehension was studied by means of eye-tracking methodology. Readers had difficulty when the syntax of a sentence required them to hold 2 similar noun phrases (NPs) in working memory before syntactically and semantically integrating either of the NPs with a verb. In sentence structures that placed these NPs at the same linear distances from one another but allowed integration with a verb for 1 of the NPs, the comprehension difficulty was not seen. These results are interpreted as indicating that similarity-based interference occurs online during the comprehension of complex sentences and that the degree of memory accessibility conventionally associated with different types of NPs does not have a strong effect on sentence processing. |
Seth N. Greenberg; Albrecht W. Inhoff; Ulrich W. Weger The impact of letter detection on eye movement patterns during reading: Reconsidering lexical analysis in connected text as a function of task Journal Article In: Quarterly Journal of Experimental Psychology, vol. 59, no. 6, pp. 987–995, 2006. @article{Greenberg2006,A comparison was made between reading tasks performed with and without the additional requirement of detecting target letters. At issue was whether eye movement measures are affected by the additional requirement of detection. Global comparisons showed robust effects of task type with longer fixations and fewer word skippings when letter detection was required. Detailed analyses of target words, however, further showed that reading with and without letter detection yielded virtually identical effects of word class and text predictability for word-skipping rate and similar effects for different word viewing duration measures. The overall oculomotor pattern suggested that detection does not substantially shift normal reading movements in response to lexical cues and thereby indicated that detection tasks are informative about word and specifically word class processing in normal reading. |
Thomas Habekost; Randi Starrfelt Alexia and quadrant-amblyopia: Reading disability after a minor visual field deficit Journal Article In: Neuropsychologia, vol. 44, no. 12, pp. 2465–2476, 2006. @article{Habekost2006,Reading difficulties caused by hemianopia are well described. We present a study of alexia in a patient (NT) with a milder visual field deficit. The patient had suffered a cerebral haemorrhage causing damage to the left occipital cortex and underlying white matter. NT's text reading was slow and prone to error, but recognition of single letters was preserved. Single word reading was accurate, but slower than normal. On perimetric testing NT initially showed an upper right quadrantanopia, but by attending covertly to this quadrant he could achieve luminance detection except in a small scotoma above the reading line. A whole report experiment showed that letter perception was severely compromised in the quadrant, consistent with cerebral amblyopia. On follow-up testing one and a half year post stroke, a clear spontaneous recovery had occurred, reflected in improved text reading with close to normal eye movements. Still, subtle reading difficulties and oculo-motor abnormalities remained. Overall, the study shows how amblyopia in one quadrant can lead to a characteristic form of alexia. |
Falk Huettig; Philip T. Quinlan; Scott A. McDonald; Gerry T. M. Altmann Models of high-dimensional semantic space predict language-mediated eye movements in the visual world Journal Article In: Acta Psychologica, vol. 121, no. 1, pp. 65–80, 2006. @article{Huettig2006,In the visual world paradigm, participants are more likely to fixate a visual referent that has some semantic relationship with a heard word, than they are to fixate an unrelated referent [Cooper, R. M. (1974). The control of eye fixation by the meaning of spoken language. A new methodology for the real-time investigation of speech perception, memory, and language processing. Cognitive Psychology, 6, 813-839]. Here, this method is used to examine the psychological validity of models of high-dimensional semantic space. The data strongly suggest that these corpus-based measures of word semantics predict fixation behavior in the visual world and provide further evidence that language-mediated eye movements to objects in the concurrent visual environment are driven by semantic similarity rather than all-or-none categorical knowledge. The data suggest that the visual world paradigm can, together with other methodologies, converge on the evidence that may help adjudicate between different theoretical accounts of the psychological semantics. |
Gary Feng Eye movements as time-series random variables: A stochastic model of eye movement control in reading Journal Article In: Cognitive Systems Research, vol. 7, no. 1, pp. 70–95, 2006. @article{Feng2006,Random variables and probabilistic decision making are important elements in most theories of reading eye movements, but they tend to receive little theoretical attention. This paper attempts to address this problem by introducing the Stochastic, Hierarchical Architecture for Reading Eye-movements (SHARE). The SHARE framework formalizes reading eye movements as observable outcomes of a latent stochastic process. By modeling eye movements as time-series random variables, the goal of the model is to uncover statistical regularities in the data, which help to identify conditions and constraints the underlying mechanism must satisfy. In the univariate analysis, it is shown that a 3-component Lognormal mixture model provides a good fit to the marginal distribution function of fixation duration, and a hierarchical model is required for modeling saccade length. As a comprehensive model of reading eye movements, SHARE was implemented as an Input-Output Hidden Markov model. With a few simple hypotheses, SHARE is able to capture reading eye-movement patterns of beginning readers and proficient adults, and to reproduce well-known psycholinguistic effects. The rationale of the model, its relations with other modeling endeavors, and its implications are discussed. |
Angélica Pérez Fornos; Jörg Sommerhalder; Benjamin Rappaz; Marco Pelizzone; Avinoam B. Safran Processes involved in oculomotor adaptation to eccentric reading Journal Article In: Investigative Ophthalmology & Visual Science, vol. 47, no. 4, pp. 1439–1447, 2006. @article{Fornos2006,PURPOSE: Adaptation to eccentric viewing in subjects with a central scotoma remains poorly understood. The purpose of this study was to analyze the adaptation stages of oculomotor control to forced eccentric reading in normal subjects. METHODS: Three normal adults (25.7 +/- 3.8 years of age) were trained to read full-page texts using a restricted 10 degrees x 7 degrees viewing window stabilized at 15 degrees eccentricity (lower visual field). Gaze position was recorded throughout the training period (1 hour per day for approximately 6 weeks). RESULTS: In the first sessions, eye movements appeared inappropriate for reading, mainly consisting of reflexive vertical (foveating) saccades. In early adaptation phases, both vertical saccade count and amplitude dramatically decreased. Horizontal saccade frequency increased in the first experimental sessions, then slowly decreased after 7 to 15 sessions. Amplitude of horizontal saccades increased with training. Gradually, accurate line jumps appeared, the proportion of progressive saccades increased, and the proportion of regressive saccades decreased. At the end of the learning process, eye movements mainly consisted of horizontal progressions, line jumps, and a few horizontal regressions. CONCLUSIONS: Two main adaptation phases were distinguished: a "faster" vertical process aimed at suppressing reflexive foveation and a "slower" restructuring of the horizontal eye movement pattern. The vertical phase consisted of a rapid reduction in the number of vertical saccades and a rapid but more progressive adjustment of remaining vertical saccades. The horizontal phase involved the amplitude adjustment of horizontal saccades (mainly progressions) to the text presented and the reduction of regressions required. |
Eva Belke Visual determinants of preferred adjective order Journal Article In: Visual Cognition, vol. 14, no. 3, pp. 261–294, 2006. @article{Belke2006,In referential communication, speakers refer to a target object among a set of context objects. The NPs they produce are characterized by a canonical order of prenominal adjectives: The dimensions that are easiest to detect (e.g., absolute dimensions) are commonly placed closer to the noun than other dimensions (e.g., relative dimensions). This stands in stark contrast to the assumption that language production is an incremental process. According to this incremental-procedural view, the dimensions that are easiest to detect should be named first. In the present paper, an alternative account of the canonical order effect is presented, suggesting that the prenominal adjective ordering rules are a result of the perceptual analysis processes underlying the evaluation of distinctive target features. Analyses of speakers' eye movements during referential communication (Experiment 1) and analyses of utterance formats produced under time pressure (Experiment 2) provide evidence for the suggested perceptual classification account. |
Reinhold Kliegl; Antje Nuthmann; Ralf Engbert Tracking the mind during reading: The influence of past, present, and future words on fixation durations Journal Article In: Journal of Experimental Psychology: General, vol. 135, no. 1, pp. 12–35, 2006. @article{Kliegl2006,Reading requires the orchestration of visual, attentional, language-related, and oculomotor processing constraints. This study replicates previous effects of frequency, predictability, and length of fixated words on fixation durations in natural reading and demonstrates new effects of these variables related to 144 sentences. Such evidence for distributed processing of words across fixation durations challenges psycholinguistic immediacy-of-processing and eye-mind assumptions. Most of the time the mind processes several words in parallel at different perceptual and cognitive levels. Eye movements can help to unravel these processes. |
Pia Knoeferle; Matthew W. Crocker The coordinated interplay of scene, utterance, and world knowledge: Evidence from eye tracking Journal Article In: Cognitive Science, vol. 30, pp. 481–529, 2006. @article{Knoeferle2006,Two studies investigated the interaction between utterance and scene processing by monitoring eye movements in agent-action-patient events, while participants listened to related utterances. The aim of Experiment 1 was to determine if and when depicted events are used for thematic role assignment and structural disambiguation of temporarily ambiguous English sentences. Shortly after the verb identified relevant depicted actions, eye movements in the event scenes revealed disambiguation. Experiment 2 investigated the relative importance of linguistic/world knowledge and scene information. When the verb identified either only the stereotypical agent of a (nondepicted) action, or the (nonstereotypical) agent of a depicted action as relevant, verb-based thematic knowledge and depicted action each rapidly influenced comprehension. In contrast, when the verb identified both of these agents as relevant, the gaze pattern suggested a preferred reliance of comprehension on depicted events over stereotypical thematic knowledge for thematic interpretation. We relate our findings to language comprehension and acquisition theories. |
Marjolein Korvorst; Ardi Roelofs; Willem J. M. Levelt Incrementality in naming and reading complex numerals: Evidence from eyetracking Journal Article In: Quarterly Journal of Experimental Psychology, vol. 59, no. 2, pp. 296–311, 2006. @article{Korvorst2006,Individuals speak incrementally when they interleave planning and articulation. Eyetracking, along with the measurement of speech onset latencies, can be used to gain more insight into the degree of incrementality adopted by speakers. In the current article, two eyetracking experiments are reported in which pairs of complex numerals were named (arabic format, Experiment 1) or read aloud (alphabetic format, Experiment 2) as house numbers and as clock times. We examined whether the degree of incrementality is differentially influenced by the production task (naming vs. reading) and mode (house numbers vs. clock time expressions), by comparing gaze durations and speech onset latencies. In both tasks and modes, dissociations were obtained between speech onset latencies (reflecting articulation) and gaze durations (reflecting planning), indicating incrementality. Furthermore, whereas none of the factors that determined gaze durations were reflected in the reading and naming latencies for the house numbers, the dissociation between gaze durations and response latencies for the clock times concerned mainly numeral length in both tasks. These results suggest that the degree of incrementality is influenced by the type of utterance (house number vs. clock time) rather than by task (reading vs. naming). The results highlight the importance of the utterance structure in determining the degree of incrementality. |
Jukka Hyönä; Mika Koivisto The role of eye movements in lateralised word recognition Journal Article In: Laterality, vol. 11, no. 2, pp. 155–169, 2006. @article{Hyoenae2006,The present study examined the role of eye movements and attention in lateralised word recognition, where words and pseudowords are presented to the right or left of the fixation point, and participants are asked to decide whether or not the presented letter string is a word. In the move condition, our participants were instructed to launch a saccade towards the target letter string, which was erased from the screen after 100 ms (i.e., prior to the eyes reaching the target). It was assumed that a preparation of an eye movement simultaneously with an attention shift results in the attention being more readily allocated to the target. In the fixate condition, participants were asked to fixate on the central fixation point throughout the trial. The data on response accuracy demonstrated that word recognition in the LVF benefited from a preparation to make an eye movement, whereas the performance in the RVF did not benefit. The results are consistent with the attentional advantage account (Mondor & Bryden, 1992), according to which the performance deficit of RH for verbal stimuli may be overcome by orienting attention to the LVF prior to the presentation of a letter string. |
Jukka Hyönä; Anna-Mari Nurminen Do adult readers know how they read ? Evidence from eye movement patterns and verbal reports Journal Article In: British Journal of Psychology, vol. 97, pp. 31–50, 2006. @article{Hyoenae2006a,The present study was carried out to investigate individual differences in reading styles among competent adult readers and to examine whether readers are aware of their reading style. Individual reading strategies were studied by having the participants read a long expository text while their eye fixation patterns were registered. A cluster analysis was performed on the eye movement data to distinguish between different reading styles. The analysis revealed three types of readers that were coined, following Hyönä, Lorch, and Kaakinen (2002), fast linear readers, slow linear readers, and topic structure processors. Readers' procedural awareness of their reading behaviour was assessed by a questionnaire. The verbal reports obtained by the questionnaire were then correlated with the corresponding eye behaviour to investigate the extent to which the readers behave the way they report doing. The correlations showed that adult readers are well aware of their general reading speed and reasonably aware of their lookback and rereading behaviour. The amount of time spent looking back in text also correlated positively with the relative success in recalling the main points expressed in the text. It is concluded that systematic and extensive looking back in text is indicative of strategic behaviour. |
Aulikki Hyrskykari Utilizing eye movements: Overcoming inaccuracy while tracking the focus of attention during reading Journal Article In: Computers in Human Behavior, vol. 22, no. 4, pp. 657–671, 2006. @article{Hyrskykari2006,Even though eye movements during reading have been studied intensively for decades, applications that track the reading of longer passages of text in real time are rare. The problems encountered in developing such an application (a reading aid, iDict), and the solutions to the problems are described. Some of the issues are general and concern the broad family of Attention Aware Systems. Others are specific to the modality of interest: eye gaze. One of the most difficult problems when using eye tracking to identify the focus of visual attention is the inaccuracy of the eye trackers used to measure the point of gaze. The inaccuracy inevitably affects the design decisions of any application exploiting the point of gaze for localizing the point of visual attention. The problem is demonstrated with examples from our experiments. The principles of the drift correction algorithms that automatically correct the vertical inaccuracy are presented and the performance of the algorithms is evaluated. |
Stamatina A. Kabanarou; Gary S. Rubin Reading with central scotomas: Is there a binocular gain? Journal Article In: Optometry and Vision Science, vol. 83, no. 11, pp. 789–796, 2006. @article{Kabanarou2006a,PURPOSE: The purpose of this study was to compare reading performance under binocular versus monocular viewing conditions in patients with bilateral age-related macular degeneration (AMD). METHODS: Twenty-two patients with AMD participated. Distance acuity, reading acuity, and contrast sensitivity were recorded binocularly and monocularly with the better eye. An infrared eye tracker recorded eye movements during reading. Reading speed and reading eye movement parameters, including number of fixations and regressions, fixation duration, and number of saccades to find the next line, were calculated for both viewing conditions. The difference between binocular and monocular performance (binocular gain) was computed. Regression analysis was used to determine whether intraocular differences in distance and reading acuity and contrast sensitivity were predictive of binocular gain. RESULTS: Reading speed when using both eyes was highly correlated with the reading speed for the better eye. There was a small, but not significant, advantage of binocular viewing (6.9 words/minute |
Scott A. McDonald Parafoveal preview benefit in reading is only obtained from the saccade goal Journal Article In: Vision Research, vol. 46, no. 26, pp. 4416–4424, 2006. @article{McDonald2006,Previous research has demonstrated that reading is less efficient when parafoveal visual information about upcoming words is invalid or unavailable; the benefit from a valid preview is realised as reduced reading times on the subsequently foveated word, and has been explained with reference to the allocation of attentional resources to parafoveal word(s). This paper presents eyetracking evidence that preview benefit is obtained only for words that are selected as the saccade target. Using a gaze-contingent display change paradigm (Rayner, K. (1975). The perceptual span and peripheral cues in reading. Cognitive Psychology, 7, 65-81), the position of the triggering boundary was set near the middle of the pretarget word. When a refixation saccade took the eye across the boundary in the pretarget word, there was no reliable effect of the validity of the target word preview. However, when the triggering boundary was positioned just after the pretarget word, a robust preview benefit was observed, replicating previous research. The current results complement findings from studies of basic visual function, suggesting that for the case of preview benefit in reading, attentional and oculomotor processes are obligatorily coupled. |
Scott A. McDonald Effects of number-of-letters on eye movements during reading are independent from effects of spatial word length Journal Article In: Visual Cognition, vol. 13, no. 1, pp. 89–98, 2006. @article{McDonald2006a,Word length is an important determinant of eye movement behaviour in reading. The current study is the first attempt to disconfound a word's number of letters from its spatial extent. In a sentence-reading experiment using closely matched stimuli, clear differences were observed between target words that subtended the same visual angle but differed in number of letters: the more letters in the word, the more fixations made on the word, and the longer the duration of these fixations. Analyses of the full set of sentence words confirmed these results for a wider range of word lengths, and are consistent with a role for number-of-letters distinct from spatial extent. The most plausible explanation for these findings is that long words are subject to a greater degree of visual crowding, which is costly for both temporal and spatial eye movement systems. |
Scott A. McDonald; Galina Spitsyna; Richard C. Shillcock; Richard J. S. Wise; Alexander P. Leff Patients with hemianopic alexia adopt an inefficient eye movement strategy when reading text Journal Article In: Brain, vol. 129, no. 1, pp. 158–167, 2006. @article{McDonald2006b,Patients with an acquired homonymous hemianopia often adapt over a period of a few months to compensate for some of the impairments caused by their visual field defect. Changes in their eye movement patterns have been demonstrated as performance on visual tasks improves with time; however, these patients often complain of persistent text reading problems. Using a video-based eye-movement tracking system, we investigated the text reading behaviour of patients with established hemianopic alexia (>6 months post deficit), a condition affecting left-to-right readers, with a homonymous field defect that encroaches into their right foveal/parafoveal visual field. Word-based analyses of text reading are standard in experiments involving normal readers, but this is the first time these methods have been extended to patients with hemianopic alexia. Using this method, we compared the patients' reading scanpaths to those generated by normal controls reading the same passages, and a random model generated by matching the patients' eye movement data to random permutations of the text they read. We demonstrate that patients adopt an inefficient reading strategy, fixating to the left of the preferred viewing location of words of four letters and longer. Fixating to the left of the normal preferred viewing location not only results in less of the fixated word being processed by the language system; ensuing fixations are also more likely to land within the same word (a refixation). It is this refixation rate that is the main factor in slowing reading times in these patients. Our data suggests that patients are able to extract some useful visual information from text to aid the planning of reading scanpaths as their behaviour differs critically from the random model. Potential reasons for this patient group failing to produce an effective reading strategy are discussed. |
Keith Rayner; Kathryn H. Chace; Timothy J. Slattery; Jane Ashby Eye movements as reflections of comprehension processes in reading Journal Article In: Scientific Studies of Reading, vol. 10, no. 3, pp. 241–255, 2006. @article{Rayner2006,In this article, we discuss the use of eye movement data to assess moment-to-moment comprehension processes. We first review some basic characteristics of eye movements during reading and then present two studies in which eye movements are monitored to confirm that eye movements are sensitive to (a) global text passage difficulty and (b) inconsistencies in text. We demonstrate that processing times increased (and especially that the number of fixations increased) when text is difficult. When there is an inconsistency, readers fixated longer on the region where the inconsistency occurred. In both studies, the probability of making a regressive eye movement increased as well. Finally, we discuss the use of eye movement recording as a research tool to further study moment-to-moment comprehension processes and the possibility of using this tool in more applied school settings. Copyright © 2006, Lawrence Erlbaum Associates, Inc. |