Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shingo Tanaka and John P. O'Doherty and Masamichi Sakagami,The cost of obtaining rewards enhances the reward prediction error signal of midbrain dopamine neurons,玉川大学脳科学研究所紀要 = Tamagawa Brain Science Institute bulletin,18827160,町田 : 玉川大学脳科学研究所,2021,,14,"28,30-42",https://cir.nii.ac.jp/crid/1520572359830049408,