| Direction repulsion in motion transparency. | |
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MedLine Citation:
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PMID: 8730999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A series of experiments investigated perceived direction of motion and depth segregation in motion transparency displays consisting of two planes of dots moving in different directions. Direction and depth judgments were obtained from human observers viewing these "bi-directional" animation sequences with and without explicit stereoscopic depth information. We found that (1) misperception of motion direction ("direction repulsion") occurs when two spatially intermingled directions of motion are within 60 deg of each other; (2) direction repulsion is minimal at cardinal directions; (3) perception of two directions of motion always results in separate motion planes segregated in depth; and (4) stereoscopic depth information has no effect on the magnitude of direction repulsion, but it does disambiguate the depth relations between motion directions. These results are developed within the context of a two-stage model of motion transparency. On this model, motion directions are registered within units subject to inhibitory interactions that cause direction repulsion, with the outputs of these units pooled within units selective for direction and disparity. |
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Authors:
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E Hiris; R Blake |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Visual neuroscience Volume: 13 ISSN: 0952-5238 ISO Abbreviation: Vis. Neurosci. Publication Date: 1996 Jan-Feb |
Date Detail:
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Created Date: 1996-11-07 Completed Date: 1996-11-07 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8809466 Medline TA: Vis Neurosci Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 187-97 Citation Subset: IM; S |
Affiliation:
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Department of Psychology/Vision Research Center, Vanderbilt University, Nashville, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Ocular* Anisotropy Depth Perception / physiology* Humans Motion Perception / physiology* Observer Variation Vision, Monocular / physiology Visual Fields / physiology |
| Grant Support | |
ID/Acronym/Agency:
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EY07760/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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