| Global versus local adaptation in fly motion-sensitive neurons. | |
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MedLine Citation:
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PMID: 16191636 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Flies, like humans, experience a well-known consequence of adaptation to visual motion, the waterfall illusion. Direction-selective neurons in the fly lobula plate permit a detailed analysis of the mechanisms responsible for motion adaptation and their function. Most of these neurons are spatially non-opponent, they sum responses to motion in the preferred direction across their entire receptive field, and adaptation depresses responses by subtraction and by reducing contrast gain. When we adapted a small area of the receptive field to motion in its anti-preferred direction, we discovered that directional gain at unadapted regions was enhanced. This novel phenomenon shows that neuronal responses to the direction of stimulation in one area of the receptive field are dynamically adjusted to the history of stimulation both within and outside that area. |
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Authors:
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Peter Neri; Simon B Laughlin |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: 272 ISSN: 0962-8452 ISO Abbreviation: Proc. Biol. Sci. Publication Date: 2005 Nov |
Date Detail:
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Created Date: 2005-09-29 Completed Date: 2006-04-19 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 101245157 Medline TA: Proc Biol Sci Country: England |
Other Details:
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Languages: eng Pagination: 2243-9 Citation Subset: IM |
Affiliation:
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University of Cambridge, Department of Zoology, Downing Site, Cambridge CB2 3EJ, England. pn@white.stanford.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Diptera / physiology* Electrophysiology Illusions / physiology* Motion Perception / physiology* Neurons / physiology* Photic Stimulation |
| Grant Support | |
ID/Acronym/Agency:
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//Wellcome Trust |
| Comments/Corrections | |
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