title: Influence of shaping procedures and schedules of reinforcement on performance in the two-bar drug discrimination task: a methodological report.
mesh_terms: D000818:Animals; D003913:Dextroamphetamine / Q000494:pharmacology; D004193:Discrimination Learning / Q000187:drug effects; D008297:Male; D008722:Methods; D010634:Phenobarbital / Q000494:pharmacology; D011287:Prejudice / Q000187:drug effects; D051381:Rats; D012055:Reinforcement Schedule
chemical_list: D003913:Dextroamphetamine; D010634:Phenobarbital