Effects of d-amphetamine and ethanol on responding of squirrel monkeys maintained under fixed-ratio schedules of food presentation and stimulus-shock termination.
Effects of d-amphetamine and ethanol were assessed on comparable behaviors maintained under fixed-ratio schedules of either food presentation or termination of electric shock and an accompanying visual stimulus. Ethanol affected the behaviors similarly in all important aspects; d-amphetamine increased rates of responding maintained by stimulus-shock termination at doses that did not affect rates of food-maintained responding. The increases in responding maintained by stimulus-shock termination were not solely due to decreases in the pause prior to the initiation of responding.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D003913:Dextroamphetamine / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004597:Electroshock; D000431:Ethanol / Q000494:pharmacology*; D000882:Haplorhini; D007323:Instinct / Q000187:drug effects*; D008297:Male; D011930:Reaction Time / Q000187:drug effects; D012055:Reinforcement Schedule; D012453:Saimiri
D000431:Ethanol; D003913:Dextroamphetamine