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Observations on Functional Recovery

Joseph E. LeDoux, PhD; Donald H. Wilson, MD; Michael S. Gazzaniga, PhD

Arch Neurol. 1978;35(8):506-508.

Abstract
• A patient with complete surgical section of the corpus callosum was tested on a constructional task 17 months post-operatively. The left and right hands were separately tested under conditions of free visual exposure and lateralized visual field exposure. The results suggest that the typically observed improved performance of the right hand with increasing postoperative time is attributable to the acquisition of homolateral control over the right hand by the right hemisphere. The implications for left-right brain organization and the syndrome of constructional apraxia are considered.

Author Affiliations
From the Department of Neurology, Cornell University Medical Center, New York (Drs LeDoux and Gazzaniga), and the Department of Neurosurgery, Dartmouth University Medical School, Hanover, NH (Dr Wilson).

Footnotes
Accepted for publication Oct 10, 1977.

Reprint requests to Department of Neurology, Cornell University Medical Center, 525 E 68th St, New York, NY 10021 (Dr LeDoux).

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