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SOLOMON D. KAPLAN, Ph.D.; Beverly Kaplan, B.A.; Jerry Schraeder, B.A.

Arch Gen Psychiatry. 1960;3(4):383-388.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The Funkenstein test has been analyzed by Gellhorn,¹ who showed how to use it to test the excitability of the hypothalamus. According to Gellhorn's neurophysiological analysis of the Funkenstein methacholine (Mecholyl) test, the methacholine-induced fall of blood pressure is signaled to the hypothalamus; the hypothalamus reflexly signals for a sympathetic discharge, and the sympathetic discharge raises the blood pressure back to its basal level. The amount of sympathetic discharge depends upon the strength of the reflex signal from the hypothalamus, and the strength of the reflex signal depends upon the degree of hypothalamic excitability. The measurement of blood pressure changes following methacholine, therefore, amounts to a measure of hypothalamic excitability.

A visual analog of the Funkenstein test was examined by validating the visual test against the blood pressure test of hypothalamic excitability. The visual test was developed from the finding of the Soviet psychologist, . . . [Full Text PDF of this Article]

Author Affiliations
Lincoln, Neb.

Footnotes
Submitted for publication May 12, 1960.

This paper was presented at the 67th Annual Convention of the American Psychological Association, Cincinnati, Sept. 3-9, 1959.

This investigation was supported by a research grant, M2060, from the National Institute of Mental Health, Public Health Service.

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