期刊
TRENDS IN COGNITIVE SCIENCES
卷 12, 期 3, 页码 99-105出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tics.2008.01.001
关键词
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资金
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R21NS041255, R01NS046424] Funding Source: NIH RePORTER
- NINDS NIH HHS [R01 NS046424, NS46424, R21 NS041255, NS41255] Funding Source: Medline
- Wellcome Trust Funding Source: Medline
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-oper-cular' components. The fronto-parietal component seems to initiate and adjust control; the cingulo-oper-cular 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.
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