Covariance Plasticity and Regulated Criticality

Details Covariance Plasticity and Regulated Criticality Covariance Plasticity and Regulated Criticality

2002-02-20

arxiv.org/abs/cs/0202034v1

Advances in Complex Systems, 1(4) (1998) pp. 361-384

Computer Science

Neural and Evolutionary Computing

35 pages, 8 figures

Scientific paper

We propose that a regulation mechanism based on Hebbian covariance plasticity may cause the brain to operate near criticality. We analyze the effect of such a regulation on the dynamics of a network with excitatory and inhibitory neurons and uniform connectivity within and across the two populations. We show that, under broad conditions, the system converges to a critical state lying at the common boundary of three regions in parameter space; these correspond to three modes of behavior: high activity, low activity, oscillation.

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