| Spatial scale dependent in-phase and anti-phase directional biases in the perception of self-organized motion patterns. | |
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MedLine Citation:
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PMID: 7941387 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A long row of evenly spaced dots is displaced on successive frames by half the distance between the dots. Although these stimuli are directionally ambiguous, spatially and temporally coherent unidirectional and oscillatory motion patterns are perceived as a result of the temporal persistence of competing in-phase and anti-phase directional biases, respectively. The perceiver's spatial scale is critical is determining whether dots are near enough to favor an in-phase bias or far enough apart to favor an anti-phase bias. The results are explained by a differential-gradient model of cooperative interaction, which specifies that the strength of facilitating (excitatory) interactions among motion detectors with similar directional selectivity falls off with distance at a greater rate than the strength of competing inhibiting interactions. |
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Authors:
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H S Hock; G W Balz |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Vision research Volume: 34 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 1994 Jul |
Date Detail:
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Created Date: 1994-11-01 Completed Date: 1994-11-01 Revised Date: 2004-11-17 |
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: 1843-61 Citation Subset: IM; S |
Affiliation:
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Department of Psychology, Florida Atlantic University, Boca Raton 33431. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Distance Perception
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physiology Eye Movements / physiology Fixation, Ocular Humans Male Models, Biological Motion Perception / physiology* Neural Inhibition / physiology Observer Variation Pattern Recognition, Visual / physiology* Time Factors |
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