Stochastic resonance in the Hodgkin-Huxley network

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-Hu xley equations are coupled with a propagational time delay to compose a net work. For a network with two elements, an enhancement of the stochastic res onance for the periodic input signals with particular frequencies is found. It is also found that a network with three elements is capable of distingu ishing periodic input signals by those frequencies.