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arXiv · 1510.02321

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

G. S. Bortolotto·M. Girardi-Schappo·J. J. Gonsalves·L. T. Pinto·M. H. R. Tragtenberg
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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.

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G. S. Bortolotto, M. Girardi-Schappo, J. J. Gonsalves, L. T. Pinto, M. H. R. Tragtenberg. 2016-11-18. Information processing occurs via critical avalanches in a model of the primary visual cortex. https://doi.org/10.1088/1742-6596%2F686%2F1%2F012008

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