| Summary: | Ss were placed in a restraining apparatus like that designed by Azrin, Rubin and Hutchinson (1968). CS was a 5-sec noise, and UCS was a 550v tail shock, the duration of which was 200 msec. A bite on the metal target that was ½-in. from the nose of the rat was the UCR, the CR and the avoidance response. No evidence of either classical or avoidance conditioning was obtained. When Ss were subsequently placed in the paired aggression situation, the rate of attack against another rat was higher than for rats who had not had the prior experience in the restraining device with the metal target. Ss with this prior experience also attacked a rubber doll at a higher rate than naive Ss. === Arts, Faculty of === Psychology, Department of === Graduate
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