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March 1929

EFFECT OF ALCOHOL ON THE PATELLAR TENDON REFLEX TIMELEE EDWARD TRAVIS, Ph.D. AND JOHN M. DORSEY, M.D. IOWA CITY

Author Affiliations

IOWA CITY

From the Wistar Institute of Anatomy and Biology.

Arch NeurPsych. 1929;21(3):613-624. doi:10.1001/archneurpsyc.1929.02210210139009
Abstract

Previous studies1 of reflex time in subjects with mental aberrations gave evidence that retardation and facilitation of the higher correlation centers, respectively, decrease and increase patellar tendon reflex time. In our studies we have designated reflex time as the time interval elapsing from the instant of stimulation of the tendon to the appearance of electrical changes in the executant muscle. These studies introduce the question of whether or not the reflex time might be experimentally varied by alterations of these higher correlation centers by drugs. The present report gives the results obtained by the administration of alcohol with that aim.

Previous investigators have determined the effect of alcohol on the extent of the knee jerk and on its latent time, as determined by gross movement of the extremity and by the thickening of the muscles involved. Dodge and Benedict2 reported that moderate quantities of alcohol lessened the speed

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