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J Cogn Neurosci. 2000 Sep;12(5):721-8.

Shifting from the perceptual brain to the logical brain: the neural impact of cognitive inhibition training.

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CNRS-CEA, University of Caen, University René-Descartes, and University Institute of France.


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.

[Indexed for MEDLINE]

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