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Cognitive Neurodynamics

Published in:

01-06-2008 | Research Article

Cortical network dynamics with time delays reveals functional connectivity in the resting brain

Authors: A. Ghosh, Y. Rho, A. R. McIntosh, R. Kötter, V. K. Jirsa

Published in: Cognitive Neurodynamics | Issue 2/2008

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Abstract

In absence of all goal-directed behavior, a characteristic network of cortical regions involving prefrontal and cingulate cortices consistently shows temporally coherent fluctuations. The origin of these fluctuations is unknown, but has been hypothesized to be of stochastic nature. In the present paper we test the hypothesis that time delays in the network dynamics play a crucial role in the generation of these fluctuations. By tuning the propagation velocity in a network based on primate connectivity, we scale the time delays and demonstrate the emergence of the resting state networks for biophysically realistic parameters.

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Title: Cortical network dynamics with time delays reveals functional connectivity in the resting brain
Authors: A. Ghosh
Y. Rho
A. R. McIntosh
R. Kötter
V. K. Jirsa
Publication date: 01-06-2008
Publisher: Springer Netherlands
Published in: Cognitive Neurodynamics / Issue 2/2008
Print ISSN: 1871-4080
Electronic ISSN: 1871-4099
DOI: https://doi.org/10.1007/s11571-008-9044-2

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