Opioids and rate of positively reinforced behavior : differential antagonism by naltrexone
Effects of GR 68755 on d-amphetamine-induced changes in mood, cognitive performance, appetite, food preference, and caloric and macronutrient intake in humans
Behavioral tolerance and cross-tolerance to the response rate-decreasing effects of mu opioids in rats
The pattern of locomotor activity after cocaine treatment in the rat
Alpha-phenyl-tert-butyl-nitrone (PBN) reverses age-related maze learning performance and motor activity deficits in C57 BL/6 mice
The enhancement of retention performance induced by picrotoxin in mice may be mediated through a release of endogenous vasopressin
Contribution of individual differences to discriminative stimulus, antinociceptive and rate-decreasing effects of opioids : importance of the drug's relative intrinsic efficacy at the mu receptor
The endogenous cannabinoid receptor agonist anandamide impairs memory in rats
Pentobarbital discrimination and generalization to other drugs under multiple fixed-ratio fixed-interval schedules
Mianserin enhancement of ethanol-induced conditioned place preference
Involvement of GABAB receptors in the motor inhibition produced by agonists of brain cannabinoid receptors