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NEUROLOGY 1986;36:1094
© 1986 American Academy of Neurology

Opticosensory ataxia and alien hand syndrome after posterior cerebral artery territory infarction

David N. Levine and William E. Rinn

Neurology Services, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, and the Department of Neurology, Harvard Medical School, Boston. MA.

A right-handed woman developed left homonymous hemianopia and left hemianesthesia from infarction due to right posterior cerebral artery occlusion. Ataxia of the left arm and leg was severe and was not improved by vision. The patient often interpreted spontaneous movements of the left arm as alien in origin. The ataxia may have been caused by a combination of sensory ataxia, resulting from right thalamic infarction, and crossed-optic ataxia, resulting from posterior disconnection of the hemispheres due to right temporo-occipital infarction. This opticosensory ataxia was associated with a new form of "alien hand" syndrome.

Address correspondence and reprint requests to Dr. Levine, The Behavior Laboratory, Burnham 802, Massachusetts General Hospital, Fruit Street, Boston, MA 02114.

Accepted for publication December 18, 1985.

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