Cortical Resonance Frequencies Emerge from Network Size and Connectivity.

ABSTRACT: Neural oscillations occur within a wide frequency range with different brain regions exhibiting resonance-like characteristics at specific points in the spectrum. At the microscopic scale, single neurons possess intrinsic oscillatory properties, such that is not yet known whether cortical resonance is consequential to neural oscillations or an emergent property of the networks that interconnect them. Using a network model of loosely-coupled Wilson-Cowan oscillators to simulate a patch of cortical sheet, we demonstrate that the size of the activated network is inversely related to its resonance frequency. Further analysis of the parameter space indicated that the number of excitatory and inhibitory connections, as well as the average transmission delay between units, determined the resonanc

SUBMITTER: Lea-Carnall CA 

PROVIDER: S-EPMC4767278 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature