The effect of MDMA (“Ecstasy”) and its optical isomers on schedule-controlled responding in mice

Abstract

Eleven mice were trained to respond under an FR 20 schedule of reinforcement and, after learning the schedule, were administered doses of saline and the following phenylisopropylamines:(±)-MDMA, S (+)-MDMA, R (−)-MDMA and (+)-amphetamine. Each …