FUNCTIONAL CHANGES IN THE PATELLAR REFLEX AS SEEN IN THE PSYCHOSES

Edward A. Strecker and Joseph HughesAuthors Info & Affiliations

Publication: American Journal of Psychiatry

Volume 93, Number 3

https://doi.org/10.1176/ajp.93.3.547

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Abstract

1. The knee jerk and its response to reinforcement have been studied in the different psychoses.

2. Manic-depressive, depressed, and involutional patients showing symptoms of agitation and depression give large reflex responses. As the mental symptoms subside the size of the reflex decreases.

3. Agitated and depressed patients are unable to reinforce a maximal patellar reflex response. Evidence is presented that this failure of the reinforcing act to increase the size of the knee jerk is a phenomena of occlusion.

4. Hypomanic patients give unpredictable reflex responses.

5. Schizophrenic patients give responses similar to those obtained from normal individuals.

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Information & Authors

Information

Published In

American Journal of Psychiatry

Volume 93 • Number 3 • November 1936

Pages: 547 - 557

History

Published in print: November 1936

Published online: 1 April 2006

Authors

Details

Edward A. Strecker

Pennsylvania Hospital for Mental and Nervous Diseases, Philadelphia

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Joseph Hughes

Pennsylvania Hospital for Mental and Nervous Diseases, Philadelphia

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FUNCTIONAL CHANGES IN THE PATELLAR REFLEX AS SEEN IN THE PSYCHOSES

Abstract

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