M
Masamichi Sakagami
Researcher at Tamagawa University
Publications - 74
Citations - 2782
Masamichi Sakagami is an academic researcher from Tamagawa University. The author has contributed to research in topics: Prefrontal cortex & Striatum. The author has an hindex of 27, co-authored 68 publications receiving 2551 citations. Previous affiliations of Masamichi Sakagami include Hitotsubashi University & Juntendo University.
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Journal ArticleDOI
Influence of Reward Expectation on Visuospatial Processing in Macaque Lateral Prefrontal Cortex
Shunsuke Kobayashi,Shunsuke Kobayashi,Johan Lauwereyns,Masashi Koizumi,Masamichi Sakagami,Masamichi Sakagami,Okihide Hikosaka +6 more
TL;DR: Previous findings suggesting that the LPFC exerts dual influences based on predicted reward outcome: improvement of memory-guided saccades and suppression of inappropriate behavior (when reward is not expected) are extended.
Journal ArticleDOI
Coding and monitoring of motivational context in the primate prefrontal cortex.
TL;DR: It is found that neurons in the lateral prefrontal cortex not only predicted the absence of reward but also represented more specifically which kind of reward would be omitted in a given trial, suggesting that context-dependent processing in the prefrontal cortex may contribute to executive control.
Journal ArticleDOI
Encoding of behavioral significance of visual stimuli by primate prefrontal neurons: relation to relevant task conditions
Masamichi Sakagami,Hiroaki Niki +1 more
TL;DR: It is suggested that neurons in the inferior dorsolateral prefrontal cortex may participate in the conversion of sensory information from different visual channels into behavioral information (information on the upcoming response) in a symmetrically rewarded go/no-go discrimination task.
Journal ArticleDOI
Temporally extended dopamine responses to perceptually demanding reward-predictive stimuli.
TL;DR: D dopamine neurons are able to reflect the reward value of perceptually complicated stimuli, and the results suggest that dopamine neurons use the moment-to-moment reward prediction associated with environmental stimuli to compute a reward prediction error.
Journal ArticleDOI
Feature-based anticipation of cues that predict reward in monkey caudate nucleus.
Johan Lauwereyns,Yoriko Takikawa,Reiko Kawagoe,Shunsuke Kobayashi,Shunsuke Kobayashi,Shunsuke Kobayashi,Masashi Koizumi,Masashi Koizumi,Brian C. Coe,Masamichi Sakagami,Masamichi Sakagami,Okihide Hikosaka +11 more
TL;DR: The authors found that a subset of caudate neurons fire before cues that instruct the monkey what he should do, while performing a memory-guided saccade task in which either the position or the color of a cue indicated presence or absence of reward.