THE ROLE OF THE ANTERIOR HYPOTHALAMUS IN TEMPERATURE REGULATION

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Abstract
Recent investigation has shown that the hypothalamus serves as a thermostat regulating body temp. It has not been known, however, whether one and the same hypothalamic mechanism protects the animal against both rises and falls in external temp. Lesions were made in the ant. part of the hypothalamus in cats. These cats showed a diminished capacity to prevent abnormal rises in body temp., and when subjected to a room temp. of 102[degree]F they did not react as readily as normal cats by increased respiratory rate and panting. The ability to regulate against cold was not seriously impaired in these animals.

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