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

a2 School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX 75080.


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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