Masafumi Oizumi
Associate Professor
c-oizumi atmark g.ecc.u-tokyo.ac.jp
Department of General Systems Studies
Graduate School of Arts and Sciences
The University of Tokyo
3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
Building 16, Room 227B

Selected Publications
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Ken Takeda*, Masaru Sasaki*, Kota Abe, Masafumi Oizumi (2025) "Unsupervised Alignment in Neuroscience: Introducing a Toolbox for Gromov-Wasserstein Optimal Transport". Journal of Neuroscience Methods, 419, 110443. DOI
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Masafumi Oizumi, Chanseok Lim, Ryota Kanai (2025) "Principal bundle geometry of qualia: Understanding the quality of consciousness from symmetry". PsyArXiv DOI
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Genji Kawakita*, Ariel Zeleznikow-Johnston*, Ken Takeda*, Naotsugu Tsuchiya**, Masafumi Oizumi** (2025) "Is my "red" your "red"?: Evaluating structural correspondences between color similarity judgments using unsupervised alignment." iScience, 28, 3, 112029. DOI
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Daiki Sekizawa, Sosuke Ito, Masafumi Oizumi (2024) "Decomposing thermodynamic dissipation of linear Langevin systems via oscillatory modes and its application to neural dynamics". Physical Review X 14 (4), 041003. DOI
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Shunsuke Kamiya, Genji Kawakita, Shuntaro Sasai, Jun Kitazono, Masafumi Oizumi (2023) "Optimal Control Costs of Brain State Transitions in Linear Stochastic Systems." The Journal of Neuroscience, 43 (2), 270-281. DOI
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Jun Kitazono, Yuma Aoki, Masafumi Oizumi (2022) "Bidirectionally connected cores in a mouse connectome: Towards extracting the brain subnetworks essential for consciousness." Cerebral Cortex, bhac143. DOI
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Masafumi Oizumi, Naotsugu Tsuchiya, Shun-ichi Amari (2016) "Unified Framework for Information Integration Based on Information Geometry". Proceedings of the National Academy of Sciences, 113(51), 14817-14822. DOI
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Masafumi Oizumi, Shun-ichi Amari, Toru Yanagawa, Naotaka Fujii, Naotsugu Tsuchiya (2016) "Measuring Integrated Information from the Decoding Perspective". PLoS Comput Biol, 12(1), e1004654. DOI
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Masafumi Oizumi*, Larissa Albantakis*, Giulio Tononi (2014) "From the Phenomenology to the Mechanisms of Consciousness: Integrated Information Theory 3.0". PLoS Computational Biology, 10, e1003588. DOI
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Masafumi Oizumi, Toshiyuki Ishii, Kazuya Ishibashi, Toshihiko Hosoya, Masato Okada (2010) "Mismatched decoding in the brain." The Journal of Neuroscience, 30, 4815-4826. DOI
Grants
- •2021-: JST Moonshot R&D
- •2023-2028: Grant-in-Aid for Transformative Research Areas (A), The Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
- •2020-2023: Grant-in-Aid for Transformative Research Areas (B), The Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
- •2018-2024: CREST, Japan Science and Technology Agency (JST)
- •2018-2022: Grant-in-Aid for Scientific Research (B), The Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
- •2014-2017: Grant-in-Aid for Young Scientists (B), The Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
Education
•2007-2010 | Ph.D., Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo
•2005-2007 | M.S., Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo
•2001-2005 | B.S., Department of Physics, Tokyo Institute of Technology
Work History
•Apr, 2019 - present | Associate Professor, The University of Tokyo, Graduate School of Arts and Sciences, Department of General Systems Studies
•Mar, 2017 - Mar, 2019 | Manager, Araya Inc., Basic Research Group
•Sep, 2014 - Oct, 2016 | Visiting Researcher, Monash University, Monash Biomedical Imaging, Prof Naotsugu Tsuchiya's Lab
•Apr, 2014 - Feb, 2017 | RIKEN Special Postdoctoral Researcher, RIKEN, Brain Science Institute, Prof Shun-ichi Amari's Lab
•Oct, 2011 - Oct, 2013 | Visiting Researcher, University of Wisconsin-Madison, Prof Giulio Tononi's Lab
•Apr, 2011 - Mar, 2014 | JSPS Superlative Postdoctoral Fellow (SPD), RIKEN Brain Science Institute, Prof Shun-ichi Amari's Lab
Fellowships
- •2014-2017: RIKEN, Special Postdoctoral Researcher
- •2011-2014: The Japan Society for the Promotion of Science (JSPS), Research Fellow SPD
- •2008-2011: The Japan Society for the Promotion of Science (JSPS), Research Fellow DC1
Awards
- •The First Prize NIKON JOICO AWARD 2021
- •Asican Pacific Neural Network Assembly Young Researcher Award 2012
- •Dean Prize, Graduate School of Frontier Sciences (Doctor Course) 2010
- •Japanese Neural Network Society Research Award 2008
- •Dean Prize, Graduate School of Frontier Sciences (Master Course) 2007
- •IEEE CIS Japan Chapter Young Researcher Award 2007
- •Japanese Neural Network Society Young Researcher Award 2006