title: Lithium and amphetamine: opposite effects on threshold of intracranial reinforcement.
mesh_terms: D000661:Amphetamine / Q000494:pharmacology*; D000704:Analysis of Variance; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001921:Brain / Q000187:drug effects; D004558:Electric Stimulation; D008094:Lithium / Q000494:pharmacology*; D008297:Male; D051381:Rats; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology; D012653:Self Stimulation; D013997:Time Factors
chemical_list: D008094:Lithium; D000661:Amphetamine