Array-enhanced coherence resonance and forced dynamics in coupled FitzHugh-Nagumo neurons with noise

Yuji Shinohara, Takashi Kanamaru, Hideyuki Suzuki, Takehiko Horita, Kazuyuki Aihara
2002 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
Nonlinear dynamics of coupled FitzHugh-Nagumo neurons subject to independent noise is analysed. A kind of self-sustained global oscillation with almost synchronous firing is generated by array-enhanced coherence resonance. Further, forced dynamics of the self-sustained global oscillation stimulated by sinusoidal input is analysed and classified to synchronized, quasi-periodic and chaotic responses just like forced oscillations in nerve membranes observed by in vitro experiments with squid giant
more » ... axons. Possible physiological importance of such forced oscillations is also discussed.
doi:10.1103/physreve.65.051906 pmid:12059592 fatcat:7pr6ibbapvb6hc2f2jniht6kly