High-frequency effects in the FitzHugh-Nagumo neuron model

David Cubero, J. P. Baltanás, Jesús Casado-Pascual
2006 Physical Review E  
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.
doi:10.1103/physreve.73.061102 pmid:16906804 fatcat:wtwxa7h5wbfrhduqhuis6eg364