title: Some tests of the additivity (autoshaping) theory of behavioral contrast.
mesh_terms: D000161:Acoustic Stimulation; D000818:Animals; D010856:Columbidae; D003216:Conditioning, Operant; D004193:Discrimination Learning; D005260:Female; D010775:Photic Stimulation; D012054:Reinforcement, Psychology; D013028:Space Perception