Sixteen pairs of male Wistar rats received 2 5-mA electric shocks at different rates (12/min or 20/min) under temperature conditions of 40°, 70°, and 100° F. Shock-elicited aggression was a direct function of temperature and was unrelated to shock frequency. There was a slight but nonsignificant (.05 < p <.10) tendency for aggressive responses to increase over trials. In Experiment 2, jiggle platform activity was measured in rats at the same experimental temperatures used in Experiment 1. Rats’ activity was inversely related to temperature.
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Berry, R.M., Jack, C.E. The effect of temperature upon shock-elicited aggression in rats. Psychon Sci 23, 341–342 (1971). https://doi.org/10.3758/BF03336141