Codeine- and cocaine-reinforced responding in rhesus monkeys: effects of dose on response rates under a fixed-ratio schedule.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D003042:Cocaine / Q000008:administration & dosage / Q000494:pharmacology*; D003061:Codeine / Q000008:administration & dosage / Q000494:pharmacology*; D003216:Conditioning, Operant / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D007275:Injections, Intravenous; D007601:Jugular Veins; D008253:Macaca mulatta; D011930:Reaction Time; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology; D013997:Time Factors
D003042:Cocaine; D003061:Codeine