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Titolo:
How the threshold of a neuron determines its capacity for coincidence detection
Autore:
Kempter, R; Gerstner, W; van Hemmen, JL;
Indirizzi:
TU Munchen, Dept Phys, D-85747 Garching, Germany TU Munchen Garching Germany D-85747 Dept Phys, D-85747 Garching, Germany Ecolel,olytech Fed Lausanne, Ctr Neuromimet Syst, DI, Swiss Fed Inst Techno Ecole Polytech Fed Lausanne Lausanne Switzerland CH-1015 Fed Inst Techno
Titolo Testata:
BIOSYSTEMS
fascicolo: 1-3, volume: 48, anno: 1998,
pagine: 105 - 112
SICI:
0303-2647(199809/12)48:1-3<105:HTTOAN>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
STOCHASTIC RESONANCE; CORTICAL NEURON; INTEGRATOR; MODEL;
Keywords:
coincidence detection; voltage threshold; coherent activity; temporal coding; rate coding; integrate-and-fire neuron;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Kempter, R TU Munchen, Dept Phys, D-85747 Garching, Germany TU Munchen Garching Germany D-85747 D-85747 Garching, Germany
Citazione:
R. Kempter et al., "How the threshold of a neuron determines its capacity for coincidence detection", BIOSYSTEMS, 48(1-3), 1998, pp. 105-112

Abstract

Coherent oscillatory activity of a population of neurons is thought to be a vital feature of temporal coding in the brain. We focus on the question of whether a single neuron can transform a spike code into a rate code. Moreprecisely, how does a neuron vary its mean output firing rate, if its input changes from random to coherent? We investigate the coincidence detectionproperties of an integrate-and-fire neuron in dependence upon internal parameters and input statistics. In particular, we show how coincidence detection depends on the membrane time constant and the threshold. Furthermore, we demonstrate that there is an optimal threshold for coincidence detection and that there is a broad range of near-optimal threshold values. Fine-tuning is not necessary. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 08:33:05