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Performance on progressive ratio schedules has been proposed as a means of assessing the effects of drugs on "reinforcer efficacy". It has been proposed that the effects of neuroleptic drugs on(More)
This experiment examined the effect of destroying central noradrenergic neurones using the selective neurotoxin N-(2-chloroethyl)-n-ethyl-2-bromobenzylamine (DSP4) on the acquisition of a temporal(More)