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April 1934

THE RED NUCLEUSITS RELATION TO POSTURAL TONUS AND RIGHTING REACTIONS

Author Affiliations

CHICAGO

From the Institute of Neurology, Northwestern University Medical School.

Arch NeurPsych. 1934;31(4):768-786. doi:10.1001/archneurpsyc.1934.02250040092006
Abstract

The mechanism of the regulation of muscle tonus has constituted a long and absorbing, although as yet uncompleted, chapter in the study of functional neurology. Recently, a certain school of investigation, now led by Rademaker, designated the nucleus ruber as the chief center for the regulation of muscle tonus, and in support of this idea, Rademaker1 presented data from a series of experiments in which the decussation of Forel was sectioned in thalamic animals and the red nuclei were directly destroyed by gross lesions in otherwise intact animals. These operative procedures were said to produce rigidity of a high degree and also to interfere with the execution of certain of the normal body righting reactions. The red nuclei were considered not only as tonus-controlling centers but also as centers for the mediation of labyrinthine righting reactions and of body righting reactions acting on the body. Body righting reactions acting

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