High-frequency effects in the FitzHugh-Nagumo neuron model

Details High-frequency effects in the FitzHugh-Nagumo neuron model High-frequency effects in the FitzHugh-Nagumo neuron model

2006-06-19

arxiv.org/abs/cond-mat/0606496v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures (to appear in Physical Review E)

Scientific paper

10.1103/PhysRevE.73.061102

The effect of a high-frequency signal on the FitzHugh-Nagumo excitable model is analyzed. We show that the firing rate is diminished as the ratio of the high-frequency amplitude to its frequency is increased. Moreover, it is demonstrated that the excitable character of the system, and consequently the firing activity, is suppressed for ratios above a given threshold value. In addition, we show that the vibrational resonance phenomenon turns up for sufficiently large noise strength values.

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