title: Effects of sodium pentabarbital on matching behavior in the pigeon.
abstract: Nine pigeons in a matching-to-sample task with 5 alternative stimuli were exposed to 4 dose levels of sodium pentobarbital. Each drug session alternated with a control session, and 6 determinations were made at each dose level. Dose-response curves were obtained, and drug effects are described for position-specific and stimulus-specific behaviors. These results suggest that the drug effect is to weaken control by the sample stimulus and shift control to properties of the comparison stimuli.
mesh_terms: D000818:Animals; D003118:Color Perception / Q000187:drug effects; D010856:Columbidae; D003216:Conditioning, Operant / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D010424:Pentobarbital / Q000494:pharmacology*
chemical_list: D010424:Pentobarbital