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Titolo:
An associative memory of Hodgkin-Huxley neuron networks with Willshaw-typesynaptic couplings
Autore:
Hasegawa, H;
Indirizzi:
Tokyo Gakugei Univ, Dept Phys, Koganei, Tokyo 1848501, Japan Tokyo GakugeiUniv Koganei Tokyo Japan 1848501 anei, Tokyo 1848501, Japan
Titolo Testata:
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
fascicolo: 7, volume: 70, anno: 2001,
pagine: 2210 - 2219
SICI:
0031-9015(200107)70:7<2210:AAMOHN>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIKING NEURONS; NATURAL FREQUENCIES; STORAGE CAPACITY; VISUAL-CORTEX; PATTERNS; TIME; FLUCTUATIONS; OSCILLATOR; RESPONSES; VARIABILITY;
Keywords:
neural networks; associative memory; Hodgkin-Huxley model; spiking neurons; Willshaw-type couplings;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
61
Recensione:
Indirizzi per estratti:
Indirizzo: Hasegawa, H Tokyo Gakugei Univ, Dept Phys, Koganei, Tokyo 1848501, Japan Tokyo Gakugei Univ Koganei Tokyo Japan 1848501 1848501, Japan
Citazione:
H. Hasegawa, "An associative memory of Hodgkin-Huxley neuron networks with Willshaw-typesynaptic couplings", J PHYS JPN, 70(7), 2001, pp. 2210-2219

Abstract

An associative memory has been discussed of neural networks consisting of spiking N (= 100) Hodgkin-Huxley (HH) neurons with time-delayed couplings, which memorize P patterns in their synaptic weights. In addition to excitatory synapses whose strengths are modified after the Willshaw-type learning rule with the 0/1 code for quiescent/active states, the network includes uniform inhibitory synapses which are introduced to reduce cross-talk noises. Our includes uniform inhibitor simulations of the HH neuron network for the noise-free state have shown to yield a fairly good performance with the storage capacity of alpha (c) = P-max/N similar to 0.4-2.4 for the low neuron activity of f similar to 0.04-0.10. This storage capacity of our temporal-code network is comparable to that of the rate-code model with the Willshaw-type synapses. Our HH neuron network is realized not to be vulnerable to the distribution of time delays in couplings. The variability of interspaceinterval (ISI) of output spike trains in the process of retrieving stored patterns is also discussed.

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Documento generato il 07/07/20 alle ore 18:06:10