CORTICAL CONTROL OF REACHING MOVEMENTS

Recent studies provide further support for the hypothesis that spatial representations of limb position, target locations, and potential mot or actions are expressed in the neuronal activity in parietal cortex. In contrast, precentral cortical activity more strongly expresses proc esses involved in the selection and execution of motor actions. As a g eneral conceptual framework, these processes may be interpreted in ter ms of such formalisms as sensorimotor transformations and 'internal mo dels'.