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Proc Natl Acad Sci U S A. 1995 Jun 20;92(13):5803-7.

Functional activation of the human ventrolateral frontal cortex during mnemonic retrieval of verbal information.

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  • 1Montreal Neurological Institute, McGill University, PQ, Canada.


Regional cerebral blood flow was measured with positron emission tomography during the performance of a verbal free recall task, a verbal paired associate task, and tasks that required the production of verbal responses either by speaking or writing. Examination of the differences in regional cerebral blood flow between these conditions demonstrated that the left ventrolateral frontal cortical area 45 is involved in the recall of verbal information from long-term memory, in addition to its contribution to speech. The act of writing activated a network of areas involving posterior parietal cortex and sensorimotor areas but not ventrolateral frontal cortex.

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