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ORIGINAL ARTICLE
Commun Sci Disord. 2021;26(3): 718-726.
Published online September 30, 2021.
doi: https://doi.org/10.12963/csd.21824
Visual Attention Patterns in Adults According to the Use of Things in Aided AAC VSDs: An Eye-tracking Study
Jin Hui Leea , Ji Young Nab , Su Hyang Leeb , and Bong Won Yib
aGoun Language & Counseling Center, Incheon, Korea
bDepartment of Communication Disorders, Nazavene University, Cheonan, Korea
Received April 20, 2021  Revised: July 20, 2021   Accepted August 15, 2021
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ABSTRACT
Objectives
This study aims to investigate patterns of visual attention on a target object in VSDs (Visual Scene Displays) when they are designed with/without an action of usage of the object. We used eye-tracking technology to evaluate how the action of usage of an object in still photographs influenced the visual attention of adults without disabilities. We tried to examine visual attention on the contents of visual scene displays (VSDs).
Methods
25 college students participated in the study. Eye-tracking technology recorded point-of-gaze while participants viewed 20 photographs. Data from eye-tracking provided information on where participants were visually fixated and paid more attention on the presented VSDs including a target object.
Results
Both total fixation duration and average fixation count were statistically significant. Participants visually fixated on the target object longer and more often when the object was being used in the presented VSDs. For AOI (Area Of Interest) time of the first fixation, after analyzing only a partial group that had the data match due to the difference in gaze pattern per subject, the average AOI time of the first fixation was shown to be faster when using an object in 6 out of 10 objects.
Conclusion
This study supports the inclusion of an action of an object usage in VSDs suggesting that the act of object usage can partially influence the visual attention pattern of a user.
Keywords: AAC | VSDs | Eye tracking | Symbol | Visual pattern
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