The Responses of a Silent Hodgkin-Huxley Neuron to Sinusoidal Signal
Yi Tang · Jiguang shengwu xuebao · 2004
The responses of a silent Hodgkin-Huxley neuron to sinusoidal signal are simulated by virtue of the method of numerical simulation, which are described by devil's-staircase-like structure curves and the interspike intervals distribution diagrams. How the mean firing rate and the interspike intervals change with the frequency and amplitude of input is analyzed, respectively. The shape of the devil's-staircase-like structure curves differs from each other when the intensity of input is changed. In each curve, there exist regular and irregular firings. Moreover, a regular firing occurs after some irregular ones in a given higher frequency range. When irregular firing occurs, the forcing frequency of input required increases with the amplitude. The values of ISIs can be single, double or irregular, which depends on the frequency of input signal when changing its amplitude. There are many typical ISIs series different from that reported recently: regular-bifurcate, regular-bifurcate-regular, irregular-regular-bifurcate, regular- irregular and bifurcate ISIs emerge alternatively -regular.