| Wind direction coding in the cockroach escape response: winner does not take all. | |
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MedLine Citation:
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PMID: 10804221 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Cockroaches respond to the approach of a predator by turning away and then running. Three bilateral pairs of giant interneurons are involved in determining the direction of the sensory stimulus and setting the turn direction. Each of these six interneurons has a different directional response to wind stimuli. We have tested whether these six cells use a winner-take-all mechanism to perform this directional determination: that is, each of these cells suppressing the motor response that each of the other cells promotes. Such a mechanism is found in similar behaviors of some other animals. By adding spikes to identified giant interneurons through intracellular stimulation during the sensory-induced behavior and analyzing the resulting directional leg movements, we find that a winner-take-all is not used in this system. Rather, directional determination appears to be based on collaborative calculation of direction by the giant interneurons as a group. |
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Authors:
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R Levi; J M Camhi |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: The Journal of neuroscience : the official journal of the Society for Neuroscience Volume: 20 ISSN: 1529-2401 ISO Abbreviation: J. Neurosci. Publication Date: 2000 May |
Date Detail:
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Created Date: 2000-05-25 Completed Date: 2000-05-25 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8102140 Medline TA: J Neurosci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 3814-21 Citation Subset: IM |
Affiliation:
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Department of Cell and Animal Biology, Life Sciences Institute, Hebrew University, Jerusalem, Israel. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Action Potentials
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physiology Animals Cockroaches / physiology* Electric Stimulation Electrophysiology Escape Reaction / physiology* Ganglia, Invertebrate / cytology, physiology Interneurons / physiology* Male Physical Stimulation Videotape Recording Wind |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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