Waning and recovery of conspecific agression in the house mouse (Mus musculus L.).

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Abstract
Reports results of 3 experiments with a total of 254 wild, C57/BL6, and DBA/2 mice. 4-hr exposure to fighting opportunities depressed intermale mice to a low baseline level. A subsequent 18-hr restriction in fighting opportunities restored aggression to its previous level. The time course of these effects was the same whether aggression was measured as the proportion of time spent fighting, trial length, or attack-reinforced barpressing rates. Replacing familiar intruders with novel intruders failed to affect baseline aggression, aggressive waning, or aggressive recovery. Waning and recovery effects replicated across the outbred wild stock of mice and the aggressive inbred strain (C57/BL6) but failed to replicate with the relatively nonaggressive inbred strain (DBA/2). (27 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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