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The Basis of Variability in Magnitude of the Response of Muscles to Transcranial Magnetic Stimulation of the Motor Cortex in Man

  • N. J. Davey
  • P. H. Ellaway
  • D. W. Maskill
  • N. P. Anissimova

Abstract

The magnitude of the compound motor evoked potential (cMEP) response of skeletal muscles to transcranial magnetic stimulation (TMS) in man may show a high degree of variability (Davey, Ellaway, Maskill, Anissimova, Rawlinson & Thomas, 1994). The variability occurs despite using a constant stimulating intensity and the efforts of the operator to maintain a constant stimulating coil position over the cranium. We have now investigated the basis of this variability.

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Reference

  1. Davey, N. J., Ellaway, P. H., Maskill, D. W., Anissimova, N. P., Rawlinson, S. R. & Thomas, H. S. (1994) Variability in the amplitude of skeletal muscle responses to bilateral transcranial magnetic stimulation in man. J. Physiol. 476, 33P.Google Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • N. J. Davey
    • 1
  • P. H. Ellaway
    • 1
  • D. W. Maskill
    • 1
  • N. P. Anissimova
    • 2
  1. 1.Department of PhysiologyCharing Cross and Westminster Medical SchoolLondonUK
  2. 2.Pavlov Institute of PhysiologySt. PetersburgRussia

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