Emergence of synchronous oscillations in neural networks excited by noise

PHYSICA D-NONLINEAR PHENOMENA

卷:179

Article

Zorzano, MP ; Vázquez, L

关键词: neurons;    FitzHugh-Nagumo;    nonlinearity;    emergence;    stochastic resonance;    noise;    Fokker-Planck equation;   

DOI  :  10.1016/S0167-2789(03)00007-1

来源: Elsevier

【 摘 要 】

The presence of noise in nonlinear dynamical systems can play a constructive role, increasing the degree of order and coherence or evoking improvements in the performance of the system. An example of this positive influence in a biological system is the impulse transmission in neurons and the synchronization of a neural network. Integrating numerically the Fokker-Planck (FP) equation we show a self-induced synchronized oscillation. Such an oscillatory state appears in a neural network coupled with a feedback term, when this system is excited by noise and the noise strength is within a certain range. (C) 2003 Elsevier Science B.V. All rights reserved.

【 授权许可】

Free