Effects of morphine, d-amphetamine, and pentobarbital on shock and light discrimination performance in rats. Morphine dependence in rats assessed in a shock discrimination task. A signal detection analysis of morphine effects on the response bias of rats in a two-shock discrimination task. Effects of immobilization stress on shock discrimination performance in rats. A comparison of the effects of morphine and immobilization stress on discrimination performance of rats.
Naltrexone fails to block shock-induced deficits in an appetitive discrimination task.
Effects of naltrexone, d-amphetamine, and their interaction on the stimulus control of choice behavior in rats. Drugs and Human Behavior . Effects of cocaine and d-amphetamine on sustained and selective attention in rats. Aging changes the effects of cocaine on vigilance task performance of rats. Drugs and Human Behavior.