Physics of neural synchronisation mediated by stochastic resonance

Author: Ward, Lawrence¹

Source: Contemporary Physics, Volume 50, Number 5, September 2009 , pp. 563-574(12)

Publisher: Taylor and Francis Ltd

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Abstract:

In this paper I discuss how synchronisation among neurons is affected by noise. Synchronisation of model neurons, which are basically autonomous relaxation oscillators, is enhanced by the addition of low levels of current noise and destroyed by the addition of higher levels of noise. Such neural stochastic resonance also occurs among neural networks in living systems at least at two functionally important scales, both within local networks and between the larger neuronal groups that are thought to implement complex cognitive and perceptual processes.

Keywords: neural synchronisation; stochastic resonance; noise; neural networks; perception; cognition

Document Type: Research article

DOI: 10.1080/00107510902879246

Affiliations: 1: Department of Psychology and the Brain Research Centre, University of British Columbia, Vancouver, BC, Canada

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