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  Dynamic optimization of odor representations by slow temporal patterning of mitral cell activity

Friedrich, R. W., & Laurent, G. (2001). Dynamic optimization of odor representations by slow temporal patterning of mitral cell activity. Science, 291(5505), 889-894. doi:10.1126/science.291.5505.889.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-EAF6-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-EAF7-A
Genre: Journal Article
Alternative Title : Dynamic optimization of odor representations by slow temporal patterning of mitral cell activity

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Science_291_2001_889.pdf (Any fulltext), 848KB
 
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 Creators:
Friedrich, Rainer W.1, Author              
Laurent, Giles, Author
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1Department of Biomedical Optics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497699              

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 Abstract: Mitral cells (MCs) in the olfactory bulb (OB) respond to odors with slow temporal firing patterns. The representation of each odor by activity patterns across the MC population thus changes continuously throughout a stimulus, in an odor-specific manner. In the zebrafish OB, we found that this distributed temporal patterning progressively reduced the similarity between ensemble representations of related odors, thereby making each odor's representation more specific over time. The tuning of individual MCs was not sharpened during this process. Hence, the individual responses of MCs did not become more specific, but the odor-coding MC assemblies changed such that their overlap decreased. This optimization of ensemble representations did not occur among olfactory afferents but resulted from OB circuit dynamics. Time can therefore gradually optimize stimulus representations in a sensory network.

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Language(s): eng - English
 Dates: 2000-09-122000-12-042001-02-02
 Publication Status: Published in print
 Pages: 6
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 Table of Contents: -
 Rev. Type: Peer
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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 291 (5505) Sequence Number: - Start / End Page: 889 - 894 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1