Summary
Adult cats were trained to lift their forepaw, depress a lever and then replace their paw on the ground. The potential recorded in the medial lemniscus to stimulation of the superficial radial nerve in the forelimb involved in the movement is depressed both prior to and during displacement of the limb. These changes did not result from movement of the stimulating electrode. The timing of the suppression in lemniscal transmission suggests a central origin of this effect.
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This investigation was supported by P.H.S. research grant NB 07685-02 from the National Institute of Neurological Diseases and Blindness, N.I.H., Public Health Service, U.S.A. and by a research grant from the Consiglio Nazionale delle Ricerche, Italy.
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Ghez, C., Lenzi, G.L. Modulation of sensory transmission in cat lemniscal system during voluntary movement. Pflugers Arch. 323, 273–278 (1971). https://doi.org/10.1007/BF00586390
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DOI: https://doi.org/10.1007/BF00586390