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Stochastic synchronization in finite size spiking networks.

Brent Doiron, John Rinzel, and Alex Reyes

Phys Rev E Stat Nonlin Soft Matter Phys 74(3 Pt 1):030903 (2006) PMID 17025585

We study a stochastic synchronization of spiking activity in feedforward networks of integrate-and-fire model neurons. A stochastic mean field analysis shows that synchronization occurs only when the network size is sufficiently small. This gives evidence that the dynamics, and hence processing, of finite size populations can be drastically different from that observed in the infinite size limit. Our results agree with experimentally observed synchrony in cortical networks, and further strengthen the link between synchrony and propagation in cortical systems.

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