J. Cogn. Neurosci.
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(Journal of Cognitive Neuroscience. 2000;12:721-728.)
© 2000 The MIT Press

Article

Shifting from the Perceptual Brain to the Logical Brain: The Neural Impact of Cognitive Inhibition Training

Olivier Houdé, Laure Zago, Emmanuel Mellet, Sylvain Moutier, Arlette Pineau, Bernard Mazoyer and Nathalie Tzourio-Mazoyer

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

Corresponding author. Groupe d'Imagerie Neurofonctionnelle (GIN), GIP Cyceron, Bd Henri Becquerel, BP 5027, 14021 Caen Cedex, France. E-mail: mazoyer{at}cyceron.fr

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.




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