Freitag, 5. April 2013

Global Connectivity of Prefrontal Cortex Predicts Cognitive Control and Intelligence

Global Connectivity of Prefrontal Cortex Predicts Cognitive Control and Intelligence
Michael W Cole et al.; 2010
http://www.jneurosci.org/content/32/26/8988.full


Abstract

Control of thought and behavior is fundamental to human intelligence. Evidence suggests a frontoparietal brain network implements such cognitive control across diverse contexts. We identify a mechanism—global connectivity—by which components of this network might coordinate control of other networks. A lateral prefrontal cortex (LPFC) region's activity was found to predict performance in a high control demand working memory task and also to exhibit high global connectivity. Critically, global connectivity in this LPFC region, involving connections both within and outside the frontoparietal network, showed a highly selective relationship with individual differences in fluid intelligence. These findings suggest LPFC is a global hub with a brainwide influence that facilitates the ability to implement control processes central to human intelligence.

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