title: Differential attenuation of two kinds of conditioned suppression by d-amphetamine and pentobarbital.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects*; D003864:Depression, Chemical; D003913:Dextroamphetamine / Q000494:pharmacology*; D008297:Male; D008784:Methysergide / Q000494:pharmacology; D010424:Pentobarbital / Q000494:pharmacology*; D011678:Punishment; D051381:Rats
chemical_list: D010424:Pentobarbital; D003913:Dextroamphetamine; D008784:Methysergide