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Behav Processes ; 200: 104701, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35817316

RESUMO

Rodent self-grooming is a stereotyped behavior that can rise due to stressors such as novelty. In the present study, the occurrence of a rebound effect was investigated by means of manipulation of contextual novelty and of the possibility of self-grooming (with an Elizabethan collar which blocked head-body contact). Fourty-six male rats were submitted to an experiment latter replicated with 43 females. Half of the animals were submitted to habituation sessions (30 min) to the test box in three days. The other half was similarly handled but habituated to small cages. On the fourth day, rats from both conditions were assigned to Elizabethan or sham collar groups. Each animal was observed for 15 min with its respective collar and for other 15 min with no collars. Increased locomotion was observed in the rats not habituated to the test box. Such habituation did not affect any grooming parameter. On the other hand, the animals wearing Elizabethan collars during the first half of the test, as compared to those which wore sham collars, showed increased self-grooming during the second half of the test (i.e., with no collars). Females showed pretty similar results. Present results, thus, evidence a rebound effect in self-grooming.


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Asseio Animal , Animais , Feminino , Masculino , Ratos
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