Effect of movement on human spinal and subcortical somatosensory evoked potentials

Masud Seyal, J. L. Ortstadt, L. W. Kraft, A. J. Gabor

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

Sensory transmission in dorsal column nuclei is inhibited during voluntary movement in experimental animals. We have studied the human response by recording spine and scalp somatosensory evoked potentials. Finger movement attenuated the amplitude and duration of the cervical N13 and the scalp N18 and N20 waves. Foot movement did not alter the lumbar N22 after foot stimulation, but the scalp P38 was attenuated. N22 results solely from activation of interneurons in the dorsal grey of the cord at the root entry zone, but N13 may receive contributions from the nucleus cuneatus. Therefore, the movement-induced attenuation of N13 is attributed to decreased contribution from the nucleus cuneatus.

Original languageEnglish (US)
Pages (from-to)650-655
Number of pages6
JournalNeurology
Volume37
Issue number4
StatePublished - 1987

ASJC Scopus subject areas

  • Neuroscience(all)

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    Seyal, M., Ortstadt, J. L., Kraft, L. W., & Gabor, A. J. (1987). Effect of movement on human spinal and subcortical somatosensory evoked potentials. Neurology, 37(4), 650-655.