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A critical review of evidence concerning long-loop reflexes excited by muscle afferents in man
  1. M. Michael Gassel1
  1. Department of Neurology, University of California School of Medicine, San Francisco, California, 94122, U.S.A.

    Abstract

    It is the thesis of this review that the origin of the intercurrent facilitation at 50 to 400 msec in the standard recovery curve of the H reflex, evoked with paired stimuli, is a complex. It is composed importantly of central feedback effects from the conditioning reflex contraction, influences mediated by cutaneous group III afferent nerve fibres excited by the percutaneous stimulus, and with a possible additional modest contribution by long-loop, spino-bulbo-spinal influences.

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    Footnotes

    • 1 This work was supported by NIH Grant NB-07562.

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