Journal
NEUROCOMPUTING
Volume 70, Issue 10-12, Pages 1943-1948Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.neucom.2006.10.107
Keywords
Hodgkin-Huxley model; coherence; noise; sub- and suprathreshold oscillations
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We analyze the response of the Hodgkin-Huxley neuron to a large number of uncorrelated stochastic inhibitory and excitatory postsynaptic 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. (c) 2006 Elsevier B.V. All rights reserved.
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