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Is there an assignment of top and bottom during symmetry perception?

Abstract:
We report data from a discrimination task in which participants had to decide whether a single-item display was either vertically symmetric or asymmetric. This decision was found to be easier when items with a top bottom polarity were placed in an orientation where the wide end was the base of the stimulus and the narrow end was the top. The difference in reaction times between this orientation and its inversion was about 10 ms. We suggest that top and bottom labels are assigned to stimuli during the detection of bilateral symmetry.
Publication status:
Published

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Publisher copy:
10.1068/p5092

Authors


Hulleman, J More by this author
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Institution:
University of Oxford
Department:
Oxford, MSD, Experimental Psychology
Journal:
Perception
Volume:
33
Issue:
5
Pages:
615-620
Publication date:
2004
DOI:
EISSN:
1468-4233
ISSN:
0301-0066
URN:
uuid:40dd55bf-0d54-4f0f-a935-fdb2d85179ef
Source identifiers:
311416
Local pid:
pubs:311416

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