H V Schwartz

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Pimozide pretreatment produced a dose-dependent attenuation of acquisition of a lever-pressing habit motivated by food reward in hungry rats. No evidence of learning was seen in animals treated at 1.0 mg/kg, minimal learning was seen at 0.5 mg/kg, and retarded learning which ultimately did reach normal asymptote was seen at 0.25 mg/kg. Thus primozide(More)
A classical conditioning method was used to alter in acute fashion a discrete portion of the activity rhythm of squirrel monkeys living in social groups. Time of day was considered the unconditioned stimulus, while a previously neutral flashing light was used as the conditioned stimulus. When the CS was associated with an active period, its subsequent(More)
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