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NEUROLOGY 1979;29:1309
© 1979 American Academy of Neurology

Spatially oriented movements in the absence of proprioception

Bruce T. Volpe, M.D., Joseph E. LeDoux, Ph.D. and Michael S. Gazzaniga, Ph.D.

Department of Neurology, Cornell University Medical College, New York, New York.

Four patients, each with a cerebrovascular accident in a different arterial supply, had unilaterally impaired somatosensory function that included deficits in the perception of touch and proprioception. In spite of central nervous system lesions and absent proprioception, all patients accurately performed spatially oriented movements with the deafferented hand. These observations suggest that execution of certain motor programs can proceed effectively without peripheral feedback.

Address reprint requests to Dr. Volpe, Department of Neurology, Cornell University Medical College, 525 East 68 Street, New York, NY 10028.

Accepted for publication November 15, 1978.






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