Current Search: Niederman, Elisabeth (x)
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Title
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INVESTIGATION OF VISUAL REQUIREMENTS FOR CHANGE DETECTION.
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Creator
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Niederman, Elisabeth, Hancock, Peter, University of Central Florida
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Abstract / Description
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In this study, participants performed a change detection task. Specifically we examined whether participants had to fixate on a difference between two images before they could detect it. Thirty-six participants performed a change detection task in either a 3 minute or a 1.5 minute condition. We found a significant interaction between task duration and fixation type (whether the participant had fixated on the difference in both, one, or neither image). Participants found a greater number of...
Show moreIn this study, participants performed a change detection task. Specifically we examined whether participants had to fixate on a difference between two images before they could detect it. Thirty-six participants performed a change detection task in either a 3 minute or a 1.5 minute condition. We found a significant interaction between task duration and fixation type (whether the participant had fixated on the difference in both, one, or neither image). Participants found a greater number of differences given more time only when they fixated on the difference in both images. The number of differences which were detected by participants with a fixation on only one image or on neither image did not increase with a corresponding increase in time, indicating that some mechanical error may be involved. This suggests that participants need to fixate on a difference before being able to detect it.
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Date Issued
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2013
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Identifier
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CFH0004500, ucf:45152
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Format
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Document (PDF)
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PURL
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http://purl.flvc.org/ucf/fd/CFH0004500
