Abstract
Stochastic resonance in a coupled Hodgkin-Huxley equation is investigated. The dependence of signal to noise ratio on the frequencies of the periodic input signals is examined by numerical experiments. Two or three Hodgkin-Huxley equations are coupled with a propagational time delay to compose a network. For a network with two elements, an enhancement of the stochastic resonance for the periodic input signals with particular frequencies is found. It is also found that a network with three elements is capable of distinguishing periodic input signals by those frequencies.
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