ELICITATION AND PUNISHMENT OF INTRASPECIES AGGRESSION BY THE SAME STIMULUS 1

Abstract

Fighting responses were elicited in pairs of rats by shocks over a period of 46 days. During certain blocks of these days, “punishing” shocks were made contingent on the shock‐elicited fights. Fighting frequency was reduced as a direct function of the intensity of the contingent shocks. Fighting frequency recovered completely when contingent shocks were removed.