Behavioral and Brain Sciences

Open Peer Commentary

Fluid intelligence as cognitive decoupling

Keith E. Stanovich a1
a1 Department of Human Development and Applied Psychology, University of Toronto, Toronto, Ontario M5S 1V6, Canada

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The dissociation of fluid cognitive functions from g is implicit in the Cattell-Horn-Carroll gF-gC theory. Nevertheless, Blair is right that fluid functions are extremely important. I suggest that the key mental operation assessed by measures of gF is the ability to sustain mental simulation while keeping the relevant representations decoupled from the actual world – an ability that underlies all hypothetical thinking.

(Published Online April 5 2006)