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High-frequency transitions in cortical spike trains related to short-term memory

Identifieur interne : 009071 ( Main/Merge ); précédent : 009070; suivant : 009072

High-frequency transitions in cortical spike trains related to short-term memory

Auteurs : M. Bodner [États-Unis] ; Y.-D. Zhou [États-Unis] ; J. M. Fuster [États-Unis]

Source :

Neuroscience [ 0306-4522 ] ; 1998.

RBID : Pascal:98-0401338

Descripteurs français

Pascal (Inist)
- Mémoire, Court terme, Cortex pariétal, Décharge unitaire, Mode décharge, Haute fréquence, Cortex somatosensoriel, Singe.
Wicri :
- topic : Singe.

English descriptors

KwdEn :
- Discharge pattern, High frequency, Memory, Monkey, Parietal cortex, Short term, Somatosensory cortex, Unit response.

Abstract

Single-unit spike trains recorded from parietal cortex of monkeys performing a tactile short-term memory task show characteristic fluctuations (transitions) in their firing frequency that are related to memory. Spike trains recorded during the memory period. when the animal must retain information for the short term, show a higher rate of such transitions than spike trains recorded during intertrial baseline periods. In the present study, an analysis of multiple temporal resolutions over which these transitions are observed reveals that the memory-related transitions occur most prominently in the 25 50 Hz range. The results of this study suggest that. in the monkey. high frequency fluctuations of neuronal discharge in the parietal cortex are correlated with haptic short-term memory. The presence of such fluctuations arc also consistent with theoretical models of short-term memory.

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Pascal:98-0401338

Le document en format XML

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<front><div type="abstract" xml:lang="en">Single-unit spike trains recorded from parietal cortex of monkeys performing a tactile short-term memory task show characteristic fluctuations (transitions) in their firing frequency that are related to memory. Spike trains recorded during the memory period. when the animal must retain information for the short term, show a higher rate of such transitions than spike trains recorded during intertrial baseline periods. In the present study, an analysis of multiple temporal resolutions over which these transitions are observed reveals that the memory-related transitions occur most prominently in the 25 50 Hz range. The results of this study suggest that. in the monkey. high frequency fluctuations of neuronal discharge in the parietal cortex are correlated with haptic short-term memory. The presence of such fluctuations arc also consistent with theoretical models of short-term memory.</div>
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High-frequency transitions in cortical spike trains related to short-term memory

High-frequency transitions in cortical spike trains related to short-term memory

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri