Behavioral and Brain Sciences

Open Peer Commentary

Exactly how are fluid intelligence, working memory, and executive function related? Cognitive neuroscience approaches to investigating the mechanisms of fluid cognition

Gregory C. Burgess a1 , Todd S. Braver a1 and Jeremy R. Gray a2
a1 Department of Psychology, Washington University, Saint Louis, MO 63130;
a2 Department of Psychology, Yale University, New Haven, CT 06520

Article author query
burgess gc   [PubMed][Google Scholar] 
braver ts   [PubMed][Google Scholar] 
gray jr   [PubMed][Google Scholar] 


Blair proposes that fluid intelligence, working memory, and executive function form a unitary construct: fluid cognition. Recently, our group has utilized a combined correlational–experimental cognitive neuroscience approach, which we argue is beneficial for investigating relationships among these individual differences in terms of neural mechanisms underlying them. Our data do not completely support Blair's strong position.

(Published Online April 5 2006)