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INVESTIGATION OF VISUAL REQUIREMENTS FOR CHANGE DETECTION

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Date Issued:
2013
Abstract/Description:
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 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.
Title: INVESTIGATION OF VISUAL REQUIREMENTS FOR CHANGE DETECTION.
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Name(s): Niederman, Elisabeth, Author
Hancock, Peter, Committee Chair
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2013
Publisher: University of Central Florida
Language(s): English
Abstract/Description: 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 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.
Identifier: CFH0004500 (IID), ucf:45152 (fedora)
Note(s): 2013-12-01
B.S.
Sciences, Dept. of Psychology
Bachelors
This record was generated from author submitted information.
Subject(s): fixation
change detection
change blindness
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFH0004500
Restrictions on Access: public
Host Institution: UCF

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