Comparison of morphine and chlorpromazine effects on moderately and severely suppressed punished responding in the pigeon.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D002746:Chlorpromazine / Q000494:pharmacology*; D010856:Columbidae; D004305:Dose-Response Relationship, Drug; D004597:Electroshock; D005502:Food; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D011678:Punishment; D011930:Reaction Time; D012055:Reinforcement Schedule; D013997:Time Factors
D009020:Morphine; D002746:Chlorpromazine