Slattery, Timothy J.; Angele, Bernhard; Rayner, Keith (2015). Data from: Eye movements and display change detection during reading. In Keith Rayner Eye Movements in Reading Data Collection. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0NP22CR

Publication abstract:
In the boundary change paradigm (Rayner, 1975), when a reader's eyes cross an invisible boundary location, a preview word is replaced by a target word. Readers are generally unaware of such changes due to saccadic suppression. However, some readers detect changes on a few trials and a small percentage of them detect many changes. Two experiments are reported in which we combined eye movement data with signal detection analyses to investigate display change detection. On each trial, readers had to indicate if they saw a display change in addition to reading for meaning. On half the trials the display change occurred during the saccade (immediate condition); on the other half, it was slowed by 15-25 ms (delay condition) to increase the likelihood that a change would be detected. Sentences were presented in an alternating case fashion allowing us to investigate the influence of both letter identity and case. In the immediate condition, change detection was higher when letters changed than when case changed corroborating findings that word processing utilizes abstract (case independent) letter identities. However, in the delay condition (where d' was much higher than the immediate condition), detection was equal for letter and case changes. The results of both experiments indicate that sensitivity to display changes was related to how close the eyes were to the invalid preview on the fixation prior to the display change, as well as the timing of the completion of this change relative to the start of the post-change fixation.

Subject population:
Adults

For each of the two experiments, readers will find in the components titled "Data" subject data files in ascii format within the "ASC" sub-directory and a number of data processing scripts and files within the "Processing" sub-directory. Processing->EyeDry Files->da 1 contains da1 files for each subject created from the corresponding ascii files. The "Materials" components contain copies of the script files used to run the experiment. These script files contain the experimental stimuli. See the Guide (Related Resource link, below) for details on some of the different types of files and column definitions that are contained in the data collection.

• 2011

• 2015

• Angele, Bernhard
• Slattery, Timothy J.

• Rayner, Keith

Presentation software: EyeTrack_0.7.10k; Font: 14pt Courier New (11 horizontal pixels per character); Viewing distance: 60cm; Screen resolution: 1280 x 1024; Cut-off for short fixations: 80ms; Cut-off for long fixations: 1000 ms; Fixations within n characters merged: 1; Software used for data processing: TimDrop.pl, jhook5b.pl, Questions.pl, EyeDry

NIH HD26765

• Eye movements
• Eye-tracking
• Gaze-contingent display change
• Psychology
• Reading
• Single line

• data

• English

Doi: https://doi.org/10.6075/J0NP22CR

Primary associated publication

• Slattery, T.J., Angele, B., & Rayner, K. (2011). Eye movements and display change detection during reading. Journal of Experimental Psychology: Human Perception and Performance, 37, 1924-1938. https://doi.org/10.1037/a0024322

Software

• EyeDry: https://blogs.umass.edu/eyelab/software/
• jhook5m.pl: https://sites.google.com/site/drtimothyjslattery/home/software
• Presentation Software: https://blogs.umass.edu/eyelab/software/
• Questions.pl: https://sites.google.com/site/drtimothyjslattery/home/software
• TimDrop.pl: https://sites.google.com/site/drtimothyjslattery/home/software/

Described by

• Abbott, Matthew J. (2015). Guide to Keith Rayner Eye Movements in Reading Data Collection. In Keith Rayner Eye Movements in Reading Data Collection. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0FF3QPR

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2023-06-01