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Pramana

, Volume 70, Issue 6, pp 1087–1097 | Cite as

Complex brain networks: From topological communities to clustered dynamics

  • Lucia Zemanová
  • Gorka Zamora-López
  • Changsong ZhouEmail author
  • Jürgen Kurths
Article

Abstract

Recent research has revealed a rich and complicated network topology in the cortical connectivity of mammalian brains. A challenging task is to understand the implications of such network structures on the functional organisation of the brain activities. We investigate synchronisation dynamics on the corticocortical network of the cat by modelling each node of the network (cortical area) with a subnetwork of interacting excitable neurons. We find that this network of networks displays clustered synchronisation behaviour and the dynamical clusters closely coincide with the topological community structures observed in the anatomical network. The correlation between the firing rate of the areas and the areal intensity is additionally examined. Our results provide insights into the relationship between the global organisation and the functional specialisation of the brain cortex.

Keywords

Cortical networks multilevel model anatomical hierarchy functional hierarchy clustered synchronisation 

PACS Nos

87.18.Sn 89.75.Da 89.75.Fb 05.45.Xt 

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Copyright information

© Indian Academy of Sciences 2008

Authors and Affiliations

  • Lucia Zemanová
    • 1
  • Gorka Zamora-López
    • 1
  • Changsong Zhou
    • 2
    Email author
  • Jürgen Kurths
    • 1
  1. 1.Institute of PhysicsUniversity of Potsdam14469Germany
  2. 2.Department of PhysicsHong Kong Baptist UniversityKowloon TongChina

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