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Japanese

EMOTIONAL RESPONSES ELICITED BY ELECTRICAL STIMULATION OF HYPOTHALAMUS IN CAT Goro Yasukochi 1 1Dept. of Neuro-psychiatry School of Medicine, Kyushu University pp.673-677
Published Date 1959/8/1
DOI https://doi.org/10.11477/mf.1406200831
  • Abstract
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The emotional responses elicited by electri-cal stimulation of hypothalamus were obser-ved in unanesthetized and unrestrained cats. The needle electrodes were streotaxically implanted by means of Horsley-Clark's ap-paratus. Stimulus threasholds were exactly studied by measuring the intensity of stimu-lating currents. Responsible region for each type of emotional responses might have been thus more precisely and more localizedly de-cided. As the stimulating current, sinusoidal A. C. of 60c/s was used, which showed itself, at least in this experiment, not inferior to rectangular wave current. Stimulating vol-tage was 1-4V, and duration of current was 1-5 sec., while the intensity of it was 50-300micro-A.

Stimulation of the anterior part of hypo-thalamus was responsible for anxiety respo-nse, middle part for ill temper, or irritabi-lity, and postero-dorsal part for curious ea-gerness. Especially the stimulation of Nucl. hypothalam. ventromed., lying in the middle part of hypothalamus usually elicited remar-kable response of furios aggression.


Copyright © 1959, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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