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J Appl Physiol 17: 747-750, 1962;
8750-7587/62 $5.00
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Maze acquisition and retention in hypothermic mice

Frederick N. Sudak 1 and Walter B. Essman 1

1 Department of Physiology, Albert Einstein College of Medicine, New York City

Three experiments were carried out to demonstrate the relation between learning and retention as affected by a reduction of colonic temperature in mice. Animals rendered hypothermic (T Delta = 3.3 C, 3.4 C) by treatment with 2,4-dichlorophenoxyacetic acid and exposure to cold air (2.0±0.5 C) did not acquire a simple escape response from a water maze within ten training trials. Saline-treated control animals demonstrated acquisition within four trials under similar conditions. Retention of the maze habit was a function of acquisition during training. Retention scores, as well as performance measures, were not affected by a comparable reduction in colonic temperature.

Note:
(With the Technical Assistance of J. R. Blumstein and D. Pennec)

Submitted on January 22, 1962






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