Noise Induced Coherence in Neural Networks

Details Noise Induced Coherence in Neural Networks Noise Induced Coherence in Neural Networks

1996-08-02

arxiv.org/abs/chao-dyn/9608001v1

Physics

Condensed Matter

4 pages ReVTeX and 3 postscript figures

Scientific paper

10.1103/PhysRevLett.77.3256

We investigate numerically the dynamics of large networks of $N$ globally pulse-coupled integrate and fire neurons in a noise-induced synchronized state. The powerspectrum of an individual element within the network is shown to exhibit in the thermodynamic limit ($N\to \infty$) a broadband peak and an additional delta-function peak that is absent from the powerspectrum of an isolated element. The powerspectrum of the mean output signal only exhibits the delta-function peak. These results are explained analytically in an exactly soluble oscillator model with global phase coupling.

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