A positive mood, a flexible brain
  Flexible reconfiguration of human brain networks supports cognitive flexibility and learning. However, modulating flexibility to enhance learning requires an understanding of the relationship between flexibility and brain state. In an unprecedented longitudinal data set, we investigate the relationship between flexibility and mood, demonstrating that flexibility is positively correlated with emotional state. Our results inform the modulation of brain state to enhance response to training in health and injury. 
Richard F. Betzel, Theodore D. Satterthwaite, Joshua I. Gold, Danielle   S. Bassett
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