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Nat Neurosci. 2008 Dec;11(12):1378-80. doi: 10.1038/nn.2217. Epub 2008 Nov 2.

Olfactory perceptual stability and discrimination.

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  • 1Neurobehavioral Institute, Department of Zoology, University of Oklahoma, 730 Van Vleet Oval, Norman, Oklahoma 73019, USA.

Abstract

No two roses smell exactly alike, but our brain accurately bundles these variations into a single percept 'rose'. We found that ensembles of rat olfactory bulb neurons decorrelate complex mixtures that vary by as little as a single missing component, whereas olfactory (piriform) cortical neural ensembles perform pattern completion in response to an absent component, essentially filling in the missing information and allowing perceptual stability. This piriform cortical ensemble activity predicts olfactory perception.

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PMID:
18978781
[PubMed - indexed for MEDLINE]
PMCID:
PMC2682180
Free PMC Article
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