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Título: Effects of emotional reactivity on inhibitory avoidance in the elevated T-maze
Autor(es): Conde, Carlos
Costa, Victor Roberto Serranoni da
Tomaz, Carlos Alberto Bezerra
Assunto: T-maze elevado
Ansiedade
Reatividade emocional
Data de publicação: Fev-2000
Referência: CONDE, C.; COSTA, V.; TOMAZ, C. Effects of emotional reactivity on inhibitory avoidance in the elevated T-maze. Brazilian journal of medical and biological research, Riberão Preto, v. 33, n. 2, p. 233-236, 2000. Disponível em: <http://www.scielo.br/pdf/bjmbr/v33n2/3442c.pdf>. Acesso em: 4 jan. 2010. doi: 10.1590/S0100-879X2000000200012.
Resumo: ABSTRACT
The possibility of the presence of inter-individual emotional differences and the memory performance of rats was examined in the elevated T-maze. Two kinds of aversively motivated behaviors, inhibitory avoidance and escape learning, were measured. Based on the number of trials to achieve a learning criterion, rats were divided into two subgroups with either low or high avoidance reactivity (LAR or HAR, respectively). Retention test avoidance latencies showed that HAR animals had better avoidance memory (Mann-Whitney rank sum test, P = 0.0035). No such differences were found for the escape component of this test. These data suggest that individual emotional differences affect inhibitory avoidance performance, which may help to explain the dispersion of the data observed in other studies using this paradigm.
DOI: https://dx.doi.org/10.1590/S0100-879X2000000200012
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