Behavioral and Brain Sciences

Open Peer Commentary

Can fluid and general intelligence be differentiated in an older adult population?

Nancy A. Zook a1 and Deana B. Davalos a2
a1 Department of Psychology, Purchase College, State University of New York, Purchase, NY 10577;
a2 Department of Psychiatry, University of Colorado Health Sciences Center, Denver, CO 80262.

Article author query
zook na   [PubMed][Google Scholar] 
davalos db   [PubMed][Google Scholar] 


The question of whether fluid intelligence can be differentiated from general intelligence in older adults is addressed. Data indicate that the developmental pattern of performance on fluid tasks differs from the pattern of general intelligence. These results suggest that it is important to identify changes in fluid cognitive functions associated with frontal lobe decline, as they may be early indicators of cognitive decline.

(Published Online April 5 2006)