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Complex modular structure of large-scale brain networks.

Abstract : Modular structure is ubiquitous among real-world networks from related proteins to social groups. Here we analyze the modular organization of brain networks at a large scale (voxel level) extracted from functional magnetic resonance imaging signals. By using a random-walk-based method, we unveil the modularity of brain webs and show modules with a spatial distribution that matches anatomical structures with functional significance. The functional role of each node in the network is studied by analyzing its patterns of inter- and intramodular connections. Results suggest that the modular architecture constitutes the structural basis for the coexistence of functional integration of distant and specialized brain areas during normal brain activities at rest.
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https://hal.inria.fr/hal-00805416
Contributor : Olivier Colliot <>
Submitted on : Wednesday, March 27, 2013 - 6:57:16 PM
Last modification on : Thursday, December 10, 2020 - 3:39:16 AM

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M. Valencia, M. A. Pastor, M. A. Fernández-Seara, J. Artieda, J. Martinerie, et al.. Complex modular structure of large-scale brain networks.. Chaos: An Interdisciplinary Journal of Nonlinear Science, American Institute of Physics, 2009, 19 (2), pp.023119. ⟨10.1063/1.3129783⟩. ⟨hal-00805416⟩

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