| Sustained directional biases in motion transparency. | |
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MedLine Citation:
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PMID: 21149310 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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In motion transparency, one surface is very often seen on top of the other in spite of no proper depth cue in the display. We investigated the dynamics of depth assignment in motion transparency stimuli composed of random dots moving in opposite directions. Similarly to other bistable percepts, which surface is seen in front is arbitrary and changes over time. In addition, we found that helping the segregation of the two surfaces by giving the same color to all dots of one surface significantly slowed down the initial rate of depth reversals. We also measured preferences to see one particular motion direction in front. Unexpectedly, we found that all of our 34 observers had a strong bias to see a particular motion direction in front, and this preferred direction was usually either downward or rightward. In contrast, there was no consistency in seeing the fastest or slowest surface in front. Finally, the preferred motion direction seen in front for one observer was very stable across several days, suggesting that a trace of this arbitrary motion preference is kept in memory. |
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Authors:
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Pascal Mamassian; Julian M Wallace |
Publication Detail:
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Type: Journal Article Date: 2010-11-01 |
Journal Detail:
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Title: Journal of vision Volume: 10 ISSN: 1534-7362 ISO Abbreviation: J Vis Publication Date: 2010 |
Date Detail:
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Created Date: 2010-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101147197 Medline TA: J Vis Country: United States |
Other Details:
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Languages: eng Pagination: - Citation Subset: IM |
Affiliation:
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Laboratoire Psychologie de la Perception (CNRS UMR 8158), Université Paris Descartes, Paris, France. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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