title: [Some questions to Dr. Takigawa's article (Part II)].
authors.forename: S
authors.initials: S
authors.lastname: Kato
mesh_terms: D003216:Conditioning, Operant; D006801:Humans; D012054:Reinforcement, Psychology; D012201:Reward; D012653:Self Stimulation; D019966:Substance-Related Disorders / Q000523:psychology*