Abstract

A 2 by 3 factorial design was used to evaluate the effects of type of injection (saline vs. ethanol) and amount injected (.25 cc,.50 cc,.75 cc/100 g body weight) on shock-elicited aggression. All subjects were maintained on a restricted diet for the duration of the experiment. Intraperitoneal injections were administered to all subjects each day for 15 days. On the 15th day, each subject received shock-elicited aggression testing 15 min after the daily injection. The results indicated that the alcohol-injection subjects were significantly more aggressive than were the saline-injected subjects at the.25-cc level, but these subjects were significantly less aggressive at the.75-cc level.

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