title: Brain endorphins: possible mediators of pleasure and reward.
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D004050:Ditiocarb / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004558:Electric Stimulation; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000008:administration & dosage; D007276:Injections, Intraventricular; D008568:Memory / Q000187:drug effects; D009270:Naloxone / Q000494:pharmacology; D051381:Rats; D012054:Reinforcement, Psychology; D012201:Reward; D012653:Self Stimulation; D013373:Substance P / Q000008:administration & dosage
chemical_list: D004723:Endorphins; D004745:Enkephalins; D013373:Substance P; D009270:Naloxone; D004050:Ditiocarb