Coherent response of the Hodgkin-Huxley neuron in the high-input regime

Details Coherent response of the Hodgkin-Huxley neuron in the high-input regime Coherent response of the Hodgkin-Huxley neuron in the high-input regime

2006-08-25

arxiv.org/abs/cond-mat/0608552v1

Neurocomputing 70 (2007) 1943

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages - 5 eps figures, contribution presented to the conference CNS 2006 held in Edinburgh (UK), to appear on Neurocomputing

Scientific paper

10.1016/j.neucom.2006.10.107

We analyze the response of the Hodgkin-Huxley neuron to a large number of uncorrelated stochastic inhibitory and excitatory post-synaptic spike trains. In order to clarify the various mechanisms responsible for noise-induced spike triggering we examine the model in its silent regime. We report the coexistence of two distinct coherence resonances: the first one at low noise is due to the stimulation of "correlated" subthreshold oscillations; the second one at intermediate noise variances is instead related to the regularization of the emitted spike trains.

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