Data/hora: 16/06/2024 09:34:52

Provedor de dados: | 56
País: | Brazil
Título: | Comparison of Pavlovian serial conditional discrimination in rats and hamsters in the same experimental situation
Autores: | Bueno,J.L.O.; Figueiredo,T.H.; Mello,F.M.C.
Data: | 2001-12-01
Ano: | 2001
Palavras-chave: | Conditional discrimination; Hamsters; Wistar rats; Behavior repertoire.
Resumo: | The present study compares behavioral changes between two distinct rodent groups, hamsters (Mesocricetus auratus) and Wistar rats, when submitted in the same homogeneous experimental situations to a serial conditional discrimination procedure which involves water deprivation and the processing of temporal variables. Both hamsters and rats acquired serial positive conditional discrimination as indicated by higher frequencies of magazine-oriented behavior during the tone followed by reinforcement (T+) and preceded by the feature stimulus light (L) and during the empty interval, than during the tone alone not followed by reinforcement (T-). Rats' frequencies of magazine-oriented behavior were high during T+ and T-, initially during training, and decreased during T- as the training progressed. However, the hamsters' frequencies of magazine-oriented behavior started very low and increased only during T+ as the training progressed. Comparison of the frequencies of magazine-oriented behavior during the empty interval in relation to the frequencies during the preceding L period showed that rats' frequencies remained very high and hamsters' frequencies increased during training. These results suggest that rats and hamsters have different behavioral strategies for the acquisition of a conditional discrimination. The results of the comparisons made in these experiments support the view of the importance of an ecological psychology approach to the understanding of complex learning in animals.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001200012
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X2001001200012
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.34 n.12 2001
Fonte: | info:eu-repo/semantics/openAccess