Author Type

Graduate Student

Date of Award

1973

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Abstract

To investigate the effects of elevated levels of hypothalamic Ca++ or Na+ on behavioral and physiological thermoregulation in the rat, bilateral cannula were implanted in various sections of the hypothalamus. In a cold environment, the introduction of artificial cerebrospinal fluid with a Ca++ excess into the posterior hypothalamus was followed by a significant increase in bar holding for 250 watt red-bulb infrared heat. In a neutral environment, introduction of the Ca++- excess solution into the posterior hypothalamus caused a significant increase in body temperature. The introduction of artificial cerebrospinal fluid with a Na+ excess under the same conditions caused respectively a significant decrease in responding for heat and a significant decrease in body temperature. Placements in the preoptic-anterior hypothalamus and lateral hypothalamus produced no significant behavioral or physiological results under either chemical conditions.

Extent

91 p.

Comments

Thesis (M.A.)--Florida Atlantic University, 1973.|Thesis (M.A.)--Florida Atlantic University, 1973.

Identifier

FADT13602

Format

pdf

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