title: Dissociating contributions of ventral and dorsal striatum to reward learning.
abstract: Reward learning plays a central role in decision making and adaptation. Accumulating evidence suggests that the striatum contributes enormously to reward learning but that its subregions may have distinct functions. A recent article by Tricomi and Lempert (J Neurophysiol. First published 22 October 2014, doi:10.1152/jn.00086.2014.) found that ventral striatum tracks reward value, whereas dorsolateral and dorsomedial striatum track the trialwise reward probability. In this Neuro Forum we reinterpret their findings and provide additional insights.
authors.affiliation: Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan; cchen@med.hokudai.ac.jp.
authors.forename: Chong
authors.identifier: http://orcid.org/0000-0002-3189-7397
authors.initials: C
authors.lastname: Chen
authors.affiliation: Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Department of Anatomy, Hokkaido University Graduate School of Medicine, Sapporo, Japan; and.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Omiya
authors.affiliation: Department of Psychology, University of Rhode Island, Kingston, Rhode Island.
authors.forename: Si
authors.initials: S
authors.lastname: Yang
mesh_terms: D003342:Corpus Striatum / Q000502:physiology*; D030141:Feedback, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011336:Probability; D012201:Reward
keywords: model based; model free; reward learning; striatum