title: Discrimination of stimulus duration and d-amphetamine in pigeons: a psychophysical analysis.
mesh_terms: D000818:Animals; D010856:Columbidae; D003216:Conditioning, Operant / Q000187:drug effects*; D003913:Dextroamphetamine / Q000008:administration & dosage / Q000494:pharmacology*; D004193:Discrimination Learning / Q000187:drug effects*; D007273:Injections, Intramuscular; D008297:Male; D010775:Photic Stimulation; D012054:Reinforcement, Psychology; D013997:Time Factors; D013998:Time Perception / Q000187:drug effects
chemical_list: D003913:Dextroamphetamine