Coupled map model for spatio-temporal processing in the olfactory bulb

L. De Almeida*, M. Idiart, J. A. Quillfeldt

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Odor processing in the animal olfactory system is still an open problem in modern neuroscience. It is a common understanding that the spatial code provided by the activity distribution of the olfactory receptor cells (ORC) due the presence of an odorant is transformed into a spatio-temporal code in the mitral cell (MC) layer in the case of mammals, or the projection neurons (PN) in the case of insects, that is decoded later along the neural path. The putative role of the spatio-temporal coding is to disambiguate the stimulus putting it in a more robust representation that allows odor separation, categorization, and recognition. Oscillations due to lateral inhibition among MC's (or PN's) may play an important part in the code as well as neural adaptation. To shed some light on their possible role in the olfaction processing, we study the properties of a simple network model. Upon the presentation of a random distributed input it respond with a rich spatio-temporal structure where two distinct phases are observed. We discuss their properties and implications in information processing.

Original languageEnglish (US)
Title of host publicationCOOPERATIVE BEHAVIOR IN NEURAL SYSTEMS
Subtitle of host publicationNinth Granada Lectures
Pages61-68
Number of pages8
DOIs
StatePublished - 2007
EventCOOPERATIVE BEHAVIOR IN NEURAL SYSTEMS: Ninth Granada Lectures - Granada, Spain
Duration: Sep 11 2006Sep 15 2006

Publication series

NameAIP Conference Proceedings
Volume887
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherCOOPERATIVE BEHAVIOR IN NEURAL SYSTEMS: Ninth Granada Lectures
Country/TerritorySpain
CityGranada
Period9/11/069/15/06

Keywords

  • Coupled maps
  • Odor coding

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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