Discriminative Stimulus Effects of Naltrexone and Haloperidol in Rats With Chronic, Intermittent Access to Sucrose

Abstract

Our previous research has shown that naltrexone can be established as a discriminative stimulus for rats given daily sucrose solutions and trained under a 3.2 mg/kg training dose (TD). Our current study attempts to establish naltrexone as a discriminative stimulus under a 0.32 mg/kg TD.