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NEUROLOGY 1970;20:1084
© 1970 American Academy of Neurology

Stereoscopic vision in patients with unilateral cerebral disease

Arthur L. Benton, Ph.D. and Henry Hécaen, M.D.

From the Neurosensory Center and Departments of Neurology and Psychology, University of Iowa, and Groupe de recherches Neuropsychologique et Neurolinguistique du Centre Neurochirurgical Sainte-Anne, Paris.

SUMMARYThe study of Carmon and Bechtoldt reporting that a significant proportion of patients with disease of the right hemisphere show impairment in stereoscopic vision while patients with left hemisphere lesions perform on a normal level was replicated with certain modifications. The results fully confirmed the findings of the Carmon-Bechtoldt study. A majority of right-handed patients with lesions of the right hemisphere performed defectively, and all patients with left hemisphere lesions, including those with aphasia, performed on a normal level. Two left-handed patients with unilateral lesions showed a reversal of this relationship. The results are interpreted as supporting the hypothesis that the right hemisphere plays a crucial role in the realization of stereoscopic vision in man.

Dr. Benton's address is Department of Neurology, University Hospital, Iowa City, Iowa 52240. Dr. Hécaen's address is Centre Neurochirurgical Sainte-Anne, 1 rue Cabanis, Paris (14), France.

This investigation was supported by research grant NS-00616 and Program-Project Grant NS-03354 from the National Institute of Neurological Diseases and Stroke (Dr. Benton) and by research grants from C.N.R.S., INSERM (France), and Foundations' Fund for Research in Psychiatry (Dr. Hécaen).

Submitted for publication Feb. 13, 1970; accepted Feb. 26, 1970.






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