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An Experimental investigation of change blindness by group eye tracking paradigm
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index.pdf
Date
2018
Author
Göl, Aysel Yasemin
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The group effect refers to a decline in vigilance when an individual is in a social, group setting. Due to a diluted risk of being preyed upon and a higher number of group members that can detect a predator, members are less alert when they are in a group. The present study investigates if such an effect can be observed in human participants in a simple change detection task by employing group eye tracking (GET) paradigm. For this end, the visual phenomenon of change blindness is explored. In a within-subjects experiment, participants attempted to find if a change has been made to a stimulus they have previously seen. The same task was performed twice, once alone and once in a group of three while their eye movements were recorded with an eye tracker. Results of eye movement analysis show that, during the visual search for a change, eye movements are significantly slower when the participants are in groups (p < .01). The findings indicate that this effect may be related to a decline in vigilance and the group effect.
Subject Keywords
Eye tracking.
,
Social perception.
,
Change blindness.
,
Vigilance (Psychology).
URI
http://etd.lib.metu.edu.tr/upload/12622140/index.pdf
https://hdl.handle.net/11511/27360
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Graduate School of Informatics, Thesis
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A. Y. Göl, “An Experimental investigation of change blindness by group eye tracking paradigm,” M.S. - Master of Science, Middle East Technical University, 2018.