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Science 23 July 1965:
Vol. 149. no. 3682, pp. 450 - 451
DOI: 10.1126/science.149.3682.450
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Articles

Brain Catecholamines: Relation to the Defense Reaction Evoked by Amygdaloid Stimulation in Cat

Donald J. Reis 1 and Lars-Magnus Gunne 1

1 Nobel Neurophysiology Institute and Department of Physiology, Karolinska Institute, Stockholm, Sweden, and Department of Neurology, Cornell University Medical College, New York 10021

Electrical stimulation of the amygdala of cats, evoking a defense reaction, was associated with a reduction in the noradrenalin content of the brain and adrenal glands but not in the dopamine content of the brain. When stimulation resulted in quieting or sleep, catecholamine concentrations were unaflected. Changes in brain noradrenalin, therefore, appear related to production of the defense response and not to nonspecific amygdalofugal pathway excitation.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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