Long-loop reflexes in the tranquilized monkey.

Long-loop reflexes in the tranquilized monkey. Research Abstract Details 

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Long-loop reflexes in the tranquilized monkey. Abstract Text:

J D Cooke,M J Eastman,

EMG responses to sudden displacement of the forelimb were studied in Cebus monkeys tranquilized with Atravet, a phenothiazine tranquilizer. The monkey's forearm was strapped firmly to a manipulandum handle. A torque motor attached at the pivot point of the handle, under servo control, provided reproducible limb displacements. In response to a sudden maintained displacement three periods of EMG activation in biceps muscle occurred with peak latencies of approximately 25, 45 and 85 msec. These correspond to the latencies of the M1, M2 and M3 responses in the alert animal. Similar responses were observed in 'naive' animals which had not previously been used in experimentation. All three responses increased in magnitude with increasing background activity and all appeared to be associated with suppression of EMG activity in the antagonist muscle. M1 and M2 responses were position dependent, M1 being greater in extension than in flexion and M2 the opposite. The position-dependence of the M2 response was produced by a depression of activity following the M1. This depression of activity lasted up to 30 msec following M1 and was directly dependent on the M1 magnitude.

Long-loop reflexes in the tranquilized monkey. Publishing Authors By Initials

JD Cooke,MJ Eastman,

For similar diagnosis: diagnostic techniques and procedures: diagnostic techniques, neurological: neurologic examination: reflex research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic techniques, neurological: neurologic examination: reflex research

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Long-loop reflexes in the tranquilized monkey. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 27

Page Numbers: 491-500

Journal Abbreviation:

ISSN: 0014-4819

DAY: 21

MONTH: Apr

YEAR: 1977

Long-loop reflexes in the tranquilized monkey. Information

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LANGUAGE: eng

NlmUniqueID: 43312

Long-loop reflexes in the tranquilized monkey. Keywords Mesh Terms:

KEYWORDS: Reflex

MESH TERMS: physiology

Chemical & Substance for Abstract: Long-loop reflexes in the tranquilized monkey. Information

Substance Name: Phenothiazines

Registry Number: 0

Grant and Affiliation Information for Long-loop reflexes in the tranquilized monkey.

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Country: GERMANY, WEST

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MEDLINETA: Exp Brain Res

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