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Spiking behavior in a noise-driven system combining oscillatory and excitatory properties


Makarov, Valeri A. and Nekorkin, Vladimir I. and Velarde, Manuel G. (2001) Spiking behavior in a noise-driven system combining oscillatory and excitatory properties. Physical Review Letters, 86 (15). pp. 3431-3434. ISSN 0031-9007

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We show that firing activity (spiking) can be regularized by noise in a FitzHugh-Nagumo (FHN) neuron model when operating slightly beyond the supercritical Hopf bifurcation (in the "canard" region). We also provide the conditions for imperfect phase Locking between interspike intervals and low amplitude quasiharmonic oscillations. For the imperfect phase locking no need exists of an external signal as it follows from the FHN intrinsic dynamics.

Item Type:Article
Uncontrolled Keywords:Aperiodic stochastic resonance; Coherence resonance; Excitable systems; Inferior olive; Neurons; Modulation; Mechanism
Subjects:Medical sciences > Biology > Neurosciences
ID Code:17044

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