Repositório Digital

A- A A+

Effect of repeated restraint stress on memory in different tasks

.

Effect of repeated restraint stress on memory in different tasks

Mostrar registro completo

Estatísticas

Título Effect of repeated restraint stress on memory in different tasks
Autor Gamaro, Giovana Duzzo
Michalowski, Mariana Bohns
Catelli, Dayenne Helena
Xavier, Marcia Henriques
Dalmaz, Carla
Abstract The present study investigated the effect of repeated stress applied to female rats on memory evaluated by three behavioral tasks: two-way shuttle avoidance, inhibitory avoidance and habituation to an open field. Repeated stress had different effects on rat behavior when different tasks were considered. In the two-way active avoidance test the stressed animals presented memory of the task, but their memory scores were impaired when compared to all other groups. In the habituation to the open field, only the control group showed a significant difference in the number of rearings between training and testing sessions, which is interpreted as an adequate memory of the task. In the handled and chronically stressed animals, on the other hand, no memory was observed, suggesting that even a very mild repeated stress would be enough to alter habituation to this task. The performance in the inhibitory avoidance task presented no significant differences between groups. The findings suggest that repeated restraint stress might induce cognitive impairments that are dependent on the task and on stress intensity.
Contido em Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas. Ribeirão Preto, SP. Vol. 32, no. 3 (Mar. 1999), p. 341-347
Assunto Bioquímica
Doença
[en] Chronic stress
[en] Inhibitory avoidance
[en] Memory
[en] Open field
[en] Two-way active avoidance
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/21164
Arquivos Descrição Formato
000297374.pdf (102.3Kb) Texto completo (inglês) Adobe PDF Visualizar/abrir

Este item está licenciado na Creative Commons License

Este item aparece na(s) seguinte(s) coleção(ões)


Mostrar registro completo

Percorrer



  • O autor é titular dos direitos autorais dos documentos disponíveis neste repositório e é vedada, nos termos da lei, a comercialização de qualquer espécie sem sua autorização prévia.
    Projeto gráfico elaborado pelo Caixola - Clube de Criação Fabico/UFRGS Powered by DSpace software, Version 1.8.1.