Mecamylamine does not precipitate withdrawal in cigarette smokers. Reinforcing, subjective and performance effects of lorazepam and diphenhydramine in humans. Acute participant-rated and behavioral effects of alprazolam and buspirone, alone and in combination with ethanol, in normal volunteers. The role of dopamine in the behavioral effects of caffeine in animals and humans. Buspirone is differentiated from diazepam in humans using a three-response drug discrimination procedure.
Physical dependence increases the relative reinforcing effects of caffeine verses placebo.
Zolpidem is differentiated from triazolam in humans using a three-response drug discrimination procedure. Subjective and physiological effects of intravenous nicotine and cocaine in cigarette smoking cocaine abusers. Selective effects of zolpidem on human memory functions.