Taste-specific neuronal ensembles in the gustatory cortex of awake rats.

Journal Article (Journal Article)

In gustatory cortex, single-neuron activity reflects the multimodal processing of taste stimuli. Little is known, however, about the interactions between gustatory cortical (GC) neurons during tastant processing. Here, these interactions were characterized. It was found that 36% (85 of 237) of neuron pairs, including many (61%) in which one or both single units were not taste specific, produced significant cross-correlations (CCs) to a subset of tastants across a hundreds of milliseconds timescale. Significant CCs arose from the coupling between the firing rates of neurons as those rates changed through time. Such coupling significantly increased the amount of tastant-specific information contained in ensembles. These data suggest that taste-specific GC assemblies may transiently form and coevolve on a behaviorally appropriate timescale, contributing to rats' ability to discriminate tastants.

Full Text

Duke Authors

Cited Authors

  • Katz, DB; Simon, SA; Nicolelis, MAL

Published Date

  • March 1, 2002

Published In

Volume / Issue

  • 22 / 5

Start / End Page

  • 1850 - 1857

PubMed ID

  • 11880514

Pubmed Central ID

  • PMC6758892

Electronic International Standard Serial Number (EISSN)

  • 1529-2401

Digital Object Identifier (DOI)

  • 10.1523/JNEUROSCI.22-05-01850.2002


  • eng

Conference Location

  • United States