Responses of cerebellar Purkinje cells to mechanical stimulation of the Achilles' tendon |
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Authors: | R. A. Grigor'yan J. Pellet E. I. Tarasova |
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Affiliation: | (1) From the Laboratory of Psychophysiology, University of Marseilles, France |
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Abstract: | Responses of cerebellar Purkinje cells to mechanical stimulation of the Achilles' tendon were studied in unanesthetized decerebrate cats. Approximately two-thirds of the Purkinje cells tested were activated in response to stimulation through climbing fibers, i.e., they generated a complex spike. In half of these cells (group A) the probability of appearance of a complex spike to a blow on the tendon was from 0.5 to 0.9 and the latent period of response from 20 to 25 msec. Purkinje cells with a latent period of response of over 35 msec were characterized by low probability of response (under 0.5) to a tap (group B). Responses of Purkinje cells to excitation of mossy fibers were weaker and more varied.I. M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Translated from Neirofiziologiya, Vol. 13, No. 2, pp. 159–167, March–April, 1981. |
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