期刊
COGNITIVE NEURODYNAMICS
卷 2, 期 2, 页码 115-120出版社
SPRINGER
DOI: 10.1007/s11571-008-9044-2
关键词
Resting brain; Default mode
资金
- Deutsche Forschungsgemeinschaft
- ATIP (Centre National de la Recherche Scientifique)
- JS McDonnell Foundation
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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