Differences in active avoidance behaviour of hypoactive and hyperactive rats subjected to immobilisation stress.
Indian J Physiol Pharmacol
;
1998 Apr; 42(2): 214-22
Artigo
em Inglês
| IMSEAR
| ID: sea-106597
ABSTRACT
Open field activity was studied in Wistar rats. Animals with low scores of ambulatory and rearing behaviours were grouped as hypoactive and those with high scores as hyperactive. Acquisition of active avoidance learning in a shuttle box was studied in the two groups. Hyperactive rats in contrast to hypoactive rats showed a better acquisition of avoidance learning. Learning was suppressed in both groups by domperidone, but was facilitated by immobilisation stress in the hypoactive group only. The two groups did not differ in the basal and stress evoked heart rates. These observations suggest that immobilisation stress favours enhancement of the dopaminergic related behaviour like avoidance learning in hypoactive rats.
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Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Ratos
/
Estresse Fisiológico
/
Aprendizagem da Esquiva
/
Comportamento Animal
/
Masculino
/
Restrição Física
/
Dopamina
/
Ratos Wistar
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Comportamento Exploratório
/
Frequência Cardíaca
Idioma:
Inglês
Revista:
Indian J Physiol Pharmacol
Ano de publicação:
1998
Tipo de documento:
Artigo
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