| Olfactory computation and object perception. | |
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MedLine Citation:
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PMID: 1862075 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Animals that are primarily dependent on olfaction must obtain a description of the spatial location and the individual odor quality of environmental odor sources through olfaction alone. The variable nature of turbulent air flow makes such a remote sensing problem solvable if the animal can make use of the information conveyed by the fluctuation with time of the mixture of odor sources. Behavioral evidence suggests that such analysis takes place. An adaptive network can solve the essential problem, isolating the quality and intensity of the components within a mixture of several individual unknown odor sources. The network structure is an idealization of olfactory bulb circuitry. The dynamics of synapse change is essential to the computation. The synaptic variables themselves contain information needed by higher processing centers. The use of the same axons to convey intensity information and quality information requires time-coding of information. Covariation defines an individual odor source (object), and this may have a parallel in vision. |
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Authors:
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J J Hopfield |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 88 ISSN: 0027-8424 ISO Abbreviation: Proc. Natl. Acad. Sci. U.S.A. Publication Date: 1991 Aug |
Date Detail:
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Created Date: 1991-09-04 Completed Date: 1991-09-04 Revised Date: 2010-09-10 |
Medline Journal Info:
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Nlm Unique ID: 7505876 Medline TA: Proc Natl Acad Sci U S A Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 6462-6 Citation Subset: IM |
Affiliation:
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Divisions of Chemistry, California Institute of Technology, Pasadena 91125. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Computer Simulation Mathematics Models, Neurological* Odors Perception* Smell* |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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