Responses of a Noisy Excitable System to External Signals with Different Periods

Xun Jia, Lu Qun Zhou, Qi Ouyang

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The behaviour of an excitable system under Gaussian white noise and external periodic forcing is systematically studied. In a large range of noise intensity, the n:1 phase locking patterns are obtained for certain ranges of the input periods, where n input periods give one spike. In the phase locking regimes, the system presents low noise-to-signal ratios and shows better regularities. Out of the regimes the system behaves less regularly and the relations between the noise-to-signal ratio and the noise intensity exhibit typical stochastic resonance phenomena. At a higher noise level, the system shows the characteristic behaviour of the noise.

Original languageEnglish (US)
Pages (from-to)435-438
Number of pages4
JournalChinese Physics Letters
Issue number3
Publication statusPublished - Mar 2004


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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