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It has been shown previously in this laboratory that rats reared in social isolation acquire a Pavlovian-conditioned approach task much more rapidly than their respective controls. This study assessed the involvement specifically of the mesoamygdaloid dopamine pathway in this facilitated learning of isolates. Thus, animals were required to associate arbitrary stimuli with a pulsed light stimulus (unconditioned...
Harmer, C. J. and Phillips, G. D.Isolation rearing enhances the rate of acquisition of a discriminative approach task but does not affect the efficacy of a conditioned reward.PHYSIOL BEHAV 63(2) 177–184, 1998.—Male Lister hooded rats were reared from weaning either alone (isolation reared) or in groups of five (socially reared controls). Experiments began at 18-weeks postweaning. Subjects were trained...
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