Key result
H reflex intercurrent facilitation arises from central feedback, cutaneous group III afferents, and spino-bulbo-spinal influences.
The review proposes that the intercurrent facilitation in the H reflex recovery curve is a complex phenomenon involving central feedback, cutaneous afferents, and long-loop reflexes.
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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M. M. Gassel (1970) reported a review. The intercurrent facilitation in the H reflex recovery curve is a complex composed of central feedback effects, cutaneous group III afferent influences, and long-loop spino-bulbo-spinal influences.
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