A dual-networks architecture of top-down control

Nico U.F. Dosenbach, Damien A. Fair, Alexander L. Cohen, Bradley L. Schlaggar, Steven E. Petersen

Research output: Contribution to journalArticle

933 Scopus citations

Abstract

Complex systems ensure resilience through multiple controllers acting at rapid and slower timescales. The need for efficient information flow through complex systems encourages small-world network structures. On the basis of these principles, a group of regions associated with top-down control was examined. Functional magnetic resonance imaging showed that each region had a specific combination of control signals; resting-state functional connectivity grouped the regions into distinct 'fronto-parietal' and 'cingulo-opercular' components. The fronto-parietal component seems to initiate and adjust control; the cingulo-opercular component provides stable 'set-maintenance' over entire task epochs. Graph analysis showed dense local connections within components and weaker 'long-range' connections between components, suggesting a small-world architecture. The control systems of the brain seem to embody the principles of complex systems, encouraging resilient performance.

Original languageEnglish (US)
Pages (from-to)99-105
Number of pages7
JournalTrends in Cognitive Sciences
Volume12
Issue number3
DOIs
StatePublished - Mar 1 2008

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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    Dosenbach, N. U. F., Fair, D. A., Cohen, A. L., Schlaggar, B. L., & Petersen, S. E. (2008). A dual-networks architecture of top-down control. Trends in Cognitive Sciences, 12(3), 99-105. https://doi.org/10.1016/j.tics.2008.01.001