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Science 2 February 1973:
Vol. 179. no. 4072, pp. 501 - 503
DOI: 10.1126/science.179.4072.501
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Articles

Motor Cortex Reflexes Associated with Learned Movement

Edward V. Evarts 1

1 Laboratory of Neurophysiology, National Institute of Mental Health. National Institutes of Health, Bethesda, Maryland 20014

In primates, sensory input can generate reflex motor cortex output in association with learned movement when the sensory input has a strong and direct connection to the motor cortex—for example, when a stimulus calling for repositioning of the hand consists of a perturbation of hand position. This finding supports the proposal that neurons of primate motor cortex may function in a transcortical servo-loop.


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