208 pp. per issue
8 1/2 x 11, illustrated
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Journal of Cognitive Neuroscience

September 2000, Vol. 12, No. 5, Pages 721-728
(doi: 10.1162/089892900562525)
© 2000 Massachusetts Institute of Technology
Shifting from the Perceptual Brain to the Logical Brain: The Neural Impact of Cognitive Inhibition Training
Article PDF (296.94 KB)

What happens in the human brain when the mind has to inhibit a perceptual process in order to activate a logical reasoning process? Here, we use functional imaging to show the networks of brain areas involved in a deductive logic task performed twice by the same subjects, first with a perceptual bias and then with a logical response following bias-inhibition training. The main finding is a striking shift in the cortical anatomy of reasoning from the posterior part of the brain (the ventral and dorsal pathways) to a left-prefrontal network including the middle-frontal gyrus, Broca's area, the anterior insula, and the pre-SMA. This result indicates that such brain shifting is an essential element for human access to logical thinking.