| Different motion sensitive units are involved in recovering the direction of moving lines. | |
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MedLine Citation:
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PMID: 8333170 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We studied direction discrimination for lines moving obliquely relative to their orientation. Manipulating contrast, length and duration of motion, we found systematic errors in direction discrimination at low contrast, long length and/or short durations. These errors can be accounted for by a competition between ambiguous velocity signals originating from contour motion processing units and signals from line terminator processing units. The dynamic of this competition can be described by a simple model involving two different classes of processing units with different contrast thresholds, different integration time constants and different levels of response saturation. |
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Authors:
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J Lorenceau; M Shiffrar; N Wells; E Castet |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Vision research Volume: 33 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 1993 Jun |
Date Detail:
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Created Date: 1993-08-17 Completed Date: 1993-08-17 Revised Date: 2008-11-21 |
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: 1207-17 Citation Subset: IM; S |
Affiliation:
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Laboratoire de Psychologie Experimentale, Université R. Descartes, Associé au CNRS, Paris, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computers Humans Models, Biological Motion Perception / physiology* Ocular Physiological Phenomena* Psychophysics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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