Temperature-modulated synchronization transition in coupled neuronal oscillators

Yasuomi D. Sato*, Keiji Okumura, Akihisa Ichiki, Masatoshi Shiino, Hideyuki Cĝteau


研究成果: Article査読

7 被引用数 (Scopus)


We study two firing properties to characterize the activities of a neuron: frequency-current (f-I) curves and phase response curves (PRCs), with variation in the intrinsic temperature scaling parameter (μ) controlling the opening and closing of ionic channels. We show a peak of the firing frequency for small μ in a class I neuron with the I value immediately after the saddle-node bifurcation, which is entirely different from previous experimental reports as well as model studies. The PRC takes a type II form on a logarithmic f-I curve when μ is small. Then, we analyze the synchronization phenomena in a two-neuron network using the phase-reduction method. We find common μ-dependent transition and bifurcation of synchronizations, regardless of the values of I. Such results give us helpful insight into synchronizations tuned with a sinusoidal-wave temperature modulation on neurons.

ジャーナルPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
出版ステータスPublished - 2012 3月 15

ASJC Scopus subject areas

  • 凝縮系物理学
  • 統計物理学および非線形物理学
  • 統計学および確率


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