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Interneurons as backseat drivers and the elusive control variable

Published online by Cambridge University Press:  04 February 2010

T. Richard Nichols
T. Richard Nichols
Affiliation:
Department of Physiology, Emory University, Atlanta, GA 30322. trn@physio.emory.edu
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Abstract

It is proposed here that the spinal network of proprioceptive feedback from length and force receptors constitutes the mechanism underlying the coordination of activation thresholds for muscles acting about the same and neighboring joints. For the most part, these circuits come between motoneurons and supraspinal signals, invalidating the idea that the activation thresholds constitute control variables for the motor system.

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Open Peer Commentary
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Behavioral and Brain Sciences , Volume 18 , Issue 4 , December 1995 , pp. 772 - 773
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Copyright © Cambridge University Press 1995

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