Current Search: HACKETT, EARLE RAYMOND (x)
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Title
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ELEVATED LEVELS OF HYPOTHALAMIC CALCIUM ION OR SODIUM ION: BEHAVIORAL AND PHYSIOLOGICAL THERMOREGULATION IN THE RAT.
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Creator
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HACKETT, EARLE RAYMOND, Florida Atlantic University
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Abstract/Description
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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...
Show moreTo 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.
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Date Issued
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1973
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PURL
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http://purl.flvc.org/fcla/dt/13602
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Subject Headings
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Hypothalamus, Body temperature--Regulation, Body temperature--Effect of drugs on
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Format
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Document (PDF)