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

  title={High-frequency effects in the FitzHugh-Nagumo neuron model.},
  author={David Cubero and J. P. Baltan{\'a}s and Jes{\'u}s Casado-Pascual},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={73 6 Pt 1},
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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