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Operant conditioning of primate spinal reflexes: effect on cortical SEPs.

Authors
  • Wolpaw, J R1
  • Dowman, R
  • 1 Wadsworth Center for Laboratories and Research, New York State Department of Health, Albany 12201.
Type
Published Article
Journal
Electroencephalography and Clinical Neurophysiology
Publisher
Elsevier
Publication Date
Apr 01, 1988
Volume
69
Issue
4
Pages
398–401
Identifiers
PMID: 2450739
Source
Medline
License
Unknown

Abstract

Previous studies have demonstrated operant conditioning of the primate spinal stretch reflex (SSR) and of its electrical analog, the H-reflex. We studied the evoked potential recorded over primary somatosensory cortex (SEP) which accompanies the H-reflex to determine whether the initial cortical response changes in the course of conditioned H-reflex change. When H-reflex amplitude changed, SEP amplitude also changed, but only half as much as the H-reflex. The results indicate that, while operant conditioning of the H-reflex has its largest effect on the spinal pathway of the reflex, it also has some effect on supraspinal pathways of the initial cortical response.

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