Behavioral and Brain Sciences



Open Peer Commentary

Working memory, executive function, and general fluid intelligence are not the same


Richard P. Heitz a1 , Thomas S. Redick a1 , David Z. Hambrick a2 , Michael J. Kane a3 , Andrew R. A. Conway a4 and Randall W. Engle a1
a1 School of Psychology, Georgia Institute of Technology, Atlanta, GA 30332; richard.heitz@psych.gatech.edu psychology.gatech.edu/renglelab gtg458n@mail.gatech.edu randall.engle@psych.gatech.edu psychology.gatech.edu/renglelab http://psychology.msu.edu/people/faculty/hambrick.htm
a2 Department of Psychology, Michigan State University, East Lansing, MI. 48824; hambric3@msu.edu
a3 Department of Psychology, University of North Carolina, Greensboro, NC 27402-6164; mjkane@uncg.edu http://www.uncg.edu/psy/graduateprogram/cognitive/faculty/mjk-index.html
a4 Psychology Department, Princeton University, Princeton University, Princeton, NJ 08544. aconway@Princeton.edu http://webscript.princeton.edu/~psych/psychology/research/conway/index.php

Article author query
heitz rp   [PubMed][Google Scholar] 
redick ts   [PubMed][Google Scholar] 
hambrick dz   [PubMed][Google Scholar] 
kane mj   [PubMed][Google Scholar] 
conway ar   [PubMed][Google Scholar] 
engle rw   [PubMed][Google Scholar] 

Abstract

Blair equates the constructs of working memory (WM), executive function, and general fluid intelligence (gF). We argue that there is good reason not to equate these constructs. We view WM and gF as separable but highly related, and suggest that the mechanism behind the relationship is controlled attention – an ability that is dependent on normal functioning of the prefrontal cortex.

(Published Online April 5 2006)



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