Behavioral and Brain Sciences

Open Peer Commentary

P-FIT and the neuroscience of intelligence: How well does P fit?

Vivek Prabhakarana1 and Bart Rypmaa2

a1 Departments of Neuroradiology, Neurology and Radiology, Johns Hopkins Hospital, Baltimore, MD 21287 vprabha1@jhmi.edu http://www.rad.jhmi.edu/residents/residents/prabhakaran.htm

a2 School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX 75080. bart.rypma@utdallas.edu http://www.utdallas.edu/bbs/staff_faculty/faculty/rypma.html

Abstract

A well-recognized framework for modeling human intelligence centers around Spearman's g, a common central factor accounting for individual differences in cognitive performance across a variety of complex tasks (Spearman 1904). The neural basis of g may be better characterized by posterior-frontal integration, rather than parietal, which may be just one of many posterior regions that are controlled by the prefrontal cortex (PFC).

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