Cognitive Tasks
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Balloon Analogue Risk Task (BART) (Non-Eye Tracking) |
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BART; Decision Making |
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Description: |
Based on Lejuez et al. (2002). Participants click a button on the screen to inflate on-screen balloons. Each inflation click earns 5 virtual cents, but each balloon will pop at some point. Participants can choose how many times to press inflate and when to ‘cash in’ their balloon (via clicking another button), but a popped balloon earns nothing. Keeps track of the total amount earned across balloons. |
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Creating False Memories Paradigm (Non-Eye Tracking) |
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DRM Task; Memory |
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Description: |
Adaptation of the second Experiment in Roediger and McDermott (1995). Participants study a list of words designed to elicit false memories, and are given a free-recall test, then a recognition test. |
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Dual Task Interference Paradigm (Non-Eye Tracking) |
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Participant Feedback; Dual Task Interference |
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Description: |
Based on Experiment 1 from Pashler (1984). Presents single- and dual-task blocks with an initial practice block. The practice block provides feedback to the participant but does not log data. The experiment blocks do not provide participant feedback but do log results. |
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Statistical Reasoning / Bead Selection Task |
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Description: |
Based on Phillips & Edwards (1966). An example of a bean/bead task allowing for either randomized draws or pre-set-order draws. |
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Lexical Decision Paradigm (Non-Eye Tracking) |
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Lexical Decision; Word / Non-word; Spreading Activation |
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Description: |
Based on Experiment 1 in Meyer & Schvaneveldt (1971). Participants decide whether letter strings are words or non-words. |
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Mental Rotation; Spatial Working Memory |
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Description: |
Classic mental rotation task. Participants make yes / no decisions as to whether two 3D objects are the same. |
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Paced Serial Addition; Auditory Stimuli |
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Description: |
An example of the PASAT task originally developed by Gronwall (1977). This experiment auditorily presents 4 sets of 61 numbers from 1 to 9. The participant is to add each new number to the number presented immediately before it and speak the answer. Participant responses are recorded. |
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RSVP; Rapid Serial Presentation; Attentional Blink |
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Description: |
Based on Experiments 1 and 2 of Raymond, Shapiro, and Arnell (1992). Shows rapid presentation (60 per second) of stimuli. |
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Auditory Presentation; Spatial Congruency; Simon Task |
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Description: |
Implementation of the Simon Effect (Simon, 1969). For each trial, a ready tone is played, then a second tone. The participant is to respond either AWAY or TOWARD the second tone (e.g., press left or right depending on if the tone was presented to the left or right ear). |
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Description: |
Based on Experiment 1A (Parallels in Stroop Priming) from Merikle and Joordens (1997). Shows how to select between different experiment versions (here, long or short SOA). |
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Visual Search |
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Description: |
Two examples of basic visual search tasks in which the target / distractor positions for a given trial are determined at random. The second example shows expanded Data Viewer integration for ease of later results analysis. |
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Keywords: |
Auditory Presentation; Spatial Congruency; Simon Task |
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Description: |
An implementation of the classic WCST, as described in Berg, E. A. (1948). Participants sort cards based on color, shape or numerosity. The rule changes at random points. |
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Reading / Language Tasks
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Single Line Reading |
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Description: |
On each trial participants press a button after reading a single line of text. On some trials there will be a follow up comprehension question for the participant to respond to. On others, there will be no question and the next reading trial will begin. |
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Typing; Text Entry |
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Description: |
A basic text entry / typing task that allows wrapped multi-line text responses from participants. |
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Boundary Crossing; Sentence Reading |
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Description: |
Classic gaze-contingent task, often used in reading research. When the participant’s gaze crosses an invisible boundary (for example just to the left of an altered word in a left-to-right reading paradigm), the altered component will change to its unaltered form. |
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Moving Window; Gaze-Contingent |
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Description: |
A project that shows how to implement a gaze contingent text moving window paradigm where the boundaries of the window are based on characters in the text. |
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Visual World Task |
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Description: |
Participant clicks on-screen items (from a four-item display) with the mouse in response to audio cues presented simultaneously with the visual display. |
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Developmental / Infant Tasks
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Accumulated Looking / Gaze-Contingent Control |
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Description: |
Simple Accumulated Looking task, in which the trial stimuli remain on screen until the participant has gazed at them for a set amount of time. |
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Infant; Habituation Task |
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Description: |
Modified from Cohen and Cashon (2001). Look-time habituation paradigm, particularly useful for infant study. Uses animated video clips as calibration screen targets. Trials last until the participant has looked for 20 seconds or looked away for at least 1 second. Contains pre-test, habituation, and test phases. |
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Basic Oculomotor Tasks
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Prosaccade; Antisaccade |
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Description: |
An example of prosaccade and antisaccade tasks. Options include drawing place holders, randomizing initial fixation duration, and gap manipulation (Step / Gap / Overlap) before target presentation. |
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Saccade Adaptation |
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Description: |
A basic saccade adaptation task illustrating how to use a velocity trigger to shift a target inwards or outwards by a specified number of degrees of visual angle during the initial saccade. |
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Horizontal Saccades; Target Stepping |
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Description: |
A saccade target moves in 5 degree steps horizontally, in either the left or right direction. to a maximum offset of +/- 15 degrees from center. The target then steps back to the center. |
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Experiment Builder Methods
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Custom Class Python; Variables |
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Description: |
Shows the basics of sending, manipulating, and retrieving variables to / from a Custom Class Python script. |
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Reaction Time Calculation |
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Description: |
Demonstrates how to determine which key / button was pressed, relay conditional feedback to the participant based on the key / button pressed, calculate reaction time, and save the results to a file. |
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Likert Scale; Participant Resonses |
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Shows how to collect responses to 7-point Likert scale survey questions. Uses mouse click responses. |
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Getting Participant Response from Sliding Scale Survey Questions |
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Keywords: |
Sliding Scale; Participant Responses |
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Shows how to collect responses on a sliding scale. Response position on the scale is selected via mouse by clicking/dragging with an on-screen pointer. |
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Audio Synchronization |
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A task demonstrating how to use Experiment Builder’s Record Sound nodes to record participant responses, and subequently synchronize these responses with the gaze data at the analysis stage. |
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SOA; Display Timing |
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Description: |
Demonstrates the use of Timer triggers (in either milliseconds or monitor retraces) to precisely schedule visual events in a trial. |
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