Information processing occurs via critical avalanches in a model of the primary visual cortex

Abstract

We study a new biologically motivated model for the Macaque monkey primary visual cortex which presents power-law avalanches after a visual stimulus. The signal propagates through all the layers of the model via avalanches that depend on network structure and synaptic parameter. We identify four different avalanche profiles as a function of the excitatory postsynaptic potential. The avalanches follow a size-duration scaling relation and present critical exponents that match experiments. The structure of the network gives rise to a regime of two characteristic spatial scales, one of which vanishes in the thermodynamic limit.

11 pages, 5 figures, 2 tables, BMSP Conference Proceedings

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Cited by in corpus (5)

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• Measuring neuronal avalanches in disordered systems with absorbing states
• Building a model of the brain: from detailed connectivity maps to network organization