title: A selective effect of p-chlorophenylalanine on fixed-ratio responding.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D003216:Conditioning, Operant; D004327:Drinking Behavior; D010134:Fenclonine / Q000494:pharmacology; D008027:Light; D008297:Male; D010649:Phenylalanine / Q000494:pharmacology*; D051381:Rats; D011930:Reaction Time / Q000187:drug effects*; D012055:Reinforcement Schedule; D012701:Serotonin / Q000378:metabolism; D013997:Time Factors; D014867:Water; D014868:Water Deprivation
chemical_list: D014867:Water; D012701:Serotonin; D010649:Phenylalanine; D010134:Fenclonine