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Articles
Forebrain Temperature Activates Behavioral Thermoregulatory Response in Arctic Sculpins
1 Physiological Research Laboratory, Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92037
Arctic sculpins of the genus Myoxocephalus adapted to water at 5°C escaped from warm water at 20°, 16°, and 12°C when their deep-body temperatures increased from an initial 5°C to about 8°C. Heating parts of the forebrain with water at 25°C circulating through a pair of thermodes astraddle rostral parts of the forebrain shortened the time spent in the warm water and lessened the incease in deep-body temperature before exit from the warm water. Cooling the forebrain to about -1°C caused a large increase in the body temperature and sometimes suppressed the escape from the warm water.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)