title: The effects of scopolamine on performance on a geometric progressive ratio schedule.
mesh_terms: D000124:Achievement; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001522:Behavior, Animal / Q000187:drug effects*; D002707:Chlordiazepoxide / Q000494:pharmacology; D003913:Dextroamphetamine / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D005260:Female; D010276:Parasympatholytics / Q000494:pharmacology; D010634:Phenobarbital / Q000494:pharmacology; D051381:Rats; D012054:Reinforcement, Psychology; D012601:Scopolamine / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D010276:Parasympatholytics; D002707:Chlordiazepoxide; D001285:Atropine; D012601:Scopolamine; D003913:Dextroamphetamine; D010634:Phenobarbital