title: Effect of diazepam on performance of pigs in a progressive ratio schedule.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects*; D003975:Diazepam / Q000494:pharmacology*; D005508:Food Deprivation; D009042:Motivation; D012055:Reinforcement Schedule; D012527:Satiation; D013552:Swine
chemical_list: D003975:Diazepam