| High temporal precision for perceiving event offsets. | |
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MedLine Citation:
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PMID: 20650287 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Characterizing the temporal limits of the human visual system has long been a central goal of vision research. Spanning three centuries of research, temporal order judgments have been used to estimate the temporal precision of visual processing, with nearly all the research focusing on onset asynchrony discriminations. Recent neurophysiological work, however, demonstrated that neural latencies for stimulus offsets are shorter and less variable than those following event onsets, suggesting that event offsets might provide more reliable timing cues to the visual system than event onsets. Here, we tested this hypothesis by measuring psychophysical thresholds for discriminating onset and offset asynchronies for both stationary and moving stimuli. In three experiments, we showed that offset asynchrony thresholds were indeed consistently lower and were less affected by stimulus variations than onset asynchrony thresholds. These findings are consistent with neurophysiology and suggest a possible role of offset signals as reliable timing references for visual events. |
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Authors:
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Duje Tadin; Joseph S Lappin; Randolph Blake; Davis M Glasser |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural Date: 2010-07-25 |
Journal Detail:
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Title: Vision research Volume: 50 ISSN: 1878-5646 ISO Abbreviation: Vision Res. Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-08-23 Completed Date: 2011-06-28 Revised Date: 2012-04-26 |
Medline Journal Info:
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Nlm Unique ID: 0417402 Medline TA: Vision Res Country: England |
Other Details:
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Languages: eng Pagination: 1966-71 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Center for Visual Science and Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY, USA. duje@cvs.rochester.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Discrimination (Psychology)
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physiology* Humans Motion Perception / physiology* Pattern Recognition, Visual Psychophysics Sensory Thresholds / physiology |
| Grant Support | |
ID/Acronym/Agency:
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P30 EY001319/EY/NEI NIH HHS; P30 EY001319-37/EY/NEI NIH HHS; P30 EY008126-22/EY/NEI NIH HHS; P30 EY08126/EY/NEI NIH HHS; T32 EY007125/EY/NEI NIH HHS; T32 EY007125-20/EY/NEI NIH HHS |
| Comments/Corrections | |
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