Preparation for reaching: a PET study of the participating structures in the human brain.


The regional cerebral blood flow (rCBF) was measured as an indicator of regional metabolic activity with positron emission tomography (PET) in eight subjects who, after seeing a screen with seven targets prepared themselves with their eyes closed to reach these targets. The preparation phase was associated with increases of rCBF in the prefrontal cortex… (More)


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