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Stochastic resonance in an extended FitzHugh–Nagumo system: The role of selective coupling

Author

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  • Tessone, Claudio J.
  • Wio, Horacio S.

Abstract

Here we present a study of stochastic resonance (SR) in an extended FitzHugh–Nagumo system with a field dependent activator diffusion. We show that the system response (here measured through the output signal-to-noise ratio (SNR)) is enhanced due to the particular form of the non-homogeneous coupling. Such a result supports previous ones obtained in a simpler scalar reaction-diffusion system and shows that such an enhancement, induced by the field dependent diffusion -or selective coupling-, is a robust phenomenon.

Suggested Citation

  • Tessone, Claudio J. & Wio, Horacio S., 2007. "Stochastic resonance in an extended FitzHugh–Nagumo system: The role of selective coupling," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 374(1), pages 46-54.
    • Handle: RePEc:eee:phsmap:v:374:y:2007:i:1:p:46-54
    DOI: 10.1016/j.physa.2006.06.026
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    Cited by:

    1. Duan, Fabing & Chapeau-Blondeau, François & Abbott, Derek, 2011. "Neural signal transduction aided by noise in multisynaptic excitatory and inhibitory pathways with saturation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 390(16), pages 2855-2862.
    2. Cesar Manchein & Paulo C. Rech, 2024. "Effects of external stimuli on the dynamics of deterministic and stochastic Hindmarsh–Rose neuron models," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(8), pages 1-16, August.
    3. Zhang, Gang & Shu, Yichen & Zhang, Tianqi, 2022. "The study on dynamical behavior of FitzHugh–Nagumo neural model under the co-excitation of non-Gaussian and colored noise," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 587(C).

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