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Spinal Cord Evaluation by Cortical Evoked Responses
Joseph F. Cusick, MD;
Joel B. Myklebust, MS;
Sanford J. Larson, MD, PhD;
Anthony Sances, Jr, PhD
Arch Neurol. 1979;36(3):140-143.
Abstract
In ten monkeys, selective segmental lesions of the dorsal columns at the upper thoracic and middle cervical levels resulted in almost total attenuation of the cortical evoked potential responses to peripheral nerve stimulation. Conversely isolated segmental dorsal column preservation showed intact transmission of the evoked responses at rostral spinal cord, nucleus ventralis posterior lateralis, and cortical levels. Responses recorded from the intralaminar thalamic nuclei in the region of nucleus centrum medianum were unaffected by dorsal column ablation, but were markedly attenuated following bilateral ventral column ablation.
Author Affiliations
From the Department of Neurosurgery, Medical College of Wisconsin, and the Wood Veterans Administration Center, Milwaukee.
Footnotes
Accepted for publication April 11, 1978.
Reprint requests to Department of Neurosurgery, Medical College of Wisconsin, 8700 W Wisconsin Ave, Milwaukee, WI 53226 (Dr Cusick).
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