title: Problems of modern behavior theory.
mesh_terms: D000818:Animals; D000830:Animals, Laboratory; D001519:Behavior; D001522:Behavior, Animal; D003214:Conditioning, Classical; D003216:Conditioning, Operant; D003213:Conditioning, Psychological; D004285:Dogs; D006801:Humans; D007858:Learning; D011582:Psychological Theory; D051381:Rats; D012054:Reinforcement, Psychology