Cold Exposure and Heat Reinforced Operant Behavior

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Science  28 Nov 1958:
Vol. 128, Issue 3335, pp. 1344
DOI: 10.1126/science.128.3335.1344


Six rats, working in a 2°C ambient temperature, were trained to depress a lever to receive a brief period of heat. Four rats were then moved into the 2°C environment to live, while the others continued to live at room temperature. Living at a temperature of 2°C increased the number of heat presentations the animals delivered to themselves.