title: Conditioning of a discriminative drug stimulus: overshadowing and blocking like procedures.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects*; D004193:Discrimination Learning / Q000187:drug effects*; D005260:Female; D010424:Pentobarbital / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D013268:Stimulation, Chemical; D014796:Visual Perception / Q000187:drug effects
chemical_list: D010424:Pentobarbital