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  • Title: Operant conditioning of primate spinal reflexes: effect on cortical SEPs.
    Author: Wolpaw JR, Dowman R.
    Journal: Electroencephalogr Clin Neurophysiol; 1988 Apr; 69(4):398-401. PubMed ID: 2450739.
    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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