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Titolo:
Population coding of stimulus location in rat somatosensory cortex
Autore:
Petersen, RS; Panzeri, S; Diamond, ME;
Indirizzi:
Scuola Int Super Studi Avanzati, Cognit Neurosci Sector, I-34014 Trieste, Italy Scuola Int Super Studi Avanzati Trieste Italy I-34014 014 Trieste, Italy Univ Newcastle Upon Tyne, Dept Psychol, Neural Syst Grp, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England Univ Newcastle Upon Tyne Newcastle Upon Tyne Tyne & Wear England NE1 7RU
Titolo Testata:
NEURON
fascicolo: 3, volume: 32, anno: 2001,
pagine: 503 - 514
SICI:
0896-6273(20011108)32:3<503:PCOSLI>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIMULATED WHISKER BARRELS; VISUAL-CORTEX; CORTICAL-NEURONS; NEURAL CODE; INFORMATION; ORGANIZATION; RESPONSES; PATTERNS; SYNCHRONIZATION; VARIABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: Petersen, RS Scuola Int Super Studi Avanzati, Cognit Neurosci Sector, Via Beirut 2-4, I-34014 Trieste, Italy Scuola Int Super Studi Avanzati Via Beirut 2-4 Trieste Italy I-34014
Citazione:
R.S. Petersen et al., "Population coding of stimulus location in rat somatosensory cortex", NEURON, 32(3), 2001, pp. 503-514

Abstract

This study explores the nature of population coding in sensory cortex by applying information theoretic analyses to neuron pairs recorded simultaneously from rat barrel cortex. We quantified the roles of individual spikes and spike patterns in encoding whisker stimulus location. 82%-85% of the total information was contained in the timing of individual spikes: first spiketime was particularly crucial. Spike patterns within neurons accounted forthe remaining 15%-18%. Neuron pairs located in the same barrel column coded redundantly, whereas pairs in neighboring barrel columns coded independently. The barrel cortical population code for stimulus location appears to be the time of single neurons' first poststimulus spikes-a fast, robust coding mechanism that does not rely on "synergy" in crossneuronal spike patterns.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 07:24:27