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ERIC Number: EJ993019
Record Type: Journal
Publication Date: 2012-Jun
Pages: 4
Abstractor: As Provided
Reference Count: 29
ISBN: N/A
ISSN: ISSN-0096-1523
Average Orientation Is More Accessible through Object Boundaries than Surface Features
Choo, Heeyoung; Levinthal, Brian R.; Franconeri, Steven L.
Journal of Experimental Psychology: Human Perception and Performance, v38 n3 p585-588 Jun 2012
In a glance, the visual system can provide a summary of some kinds of information about objects in a scene. We explore how summary information about "orientation" is extracted and find that some representations of orientation are privileged over others. Participants judged the average orientation of either a set of 6 bars or 6 circular gratings. For bars, orientation information was carried by object boundary features, while for gratings, orientation was carried by internal surface features. The results showed more accurate averaging performance for bars than for gratings, even when controlling for potential differences in encoding precision for solitary objects. We suggest that, during orientation averaging, the visual system prioritizes object boundaries over surface features. This privilege for boundary features may lead to a better representation of the spatial layout of a scene. (Contains 2 figures and 1 footnote.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Illinois