Two experiments evaluated rate dependency and a neuropharmacological model of timing as ex- planations of the effects of amphetamine on behavior under discriminative control by time. Four ...
The effects of the availability of an alternative reinforcer on responding maintained by food pellets or fluid solutions were examined in 6 adult male baboons (Papio cynocephalus anubis). ...
There is increasing evidence that the fasciculus retroflexus (FR) represents a ‘weak link’ following the continuous administration of drugs of abuse. A variety of drugs which ...