Masamichi J Hayashi

Profile Information

Affiliation: Senior researcher, Center for Information and Neural Networks (CiNet), Advanced ICT Research Institute, National Institute of Information and Communications Technology
: Visiting Associate Professor, Graduate School of Frontier Biosciences, The University of Osaka

Degree: Ph.D. (Science)(Mar, 2011, The Graduate University for Advanced Studies)

Researcher number: 50746469
J-GLOBAL ID: 201101001518225394
researchmap Member ID: B000218977

External link: https://www2.nict.go.jp/bnc/hayashi/en/

My research focuses on the neural basis of subjective experience.

Major Research History

Apr, 2025 - Present

Senior researcher, Center for Information and Neural Networks (CiNet), Advanced ICT Research institute, National Institute of Information and Communications Technology
Apr, 2022 - Present

Visiting Associate Professor, Graduate School of Frontier Biosciences, Osaka University
Apr, 2021 - Mar, 2025

Researcher (tenure-track), Center for Information and Neural Networks (CiNet), Advanced ICT Research Institute, National Institute of Information and Communications Technology,
Apr, 2021 - Mar, 2022

Visiting Academic Staff, Graduate School of Frontier Biosciences,, Osaka University,
Oct, 2019 - Mar, 2022

PRESTO Researcher, Japan Science and Technology Agency,
Aug, 2019 - Mar, 2021

Visiting Researcher, Graduate School of Frontier Biosciences,, Osaka University
Apr, 2019 - Mar, 2021

Researcher, Center for Information and Neural Networks (CiNet),, National Institute of Information and Communications Technology,
Apr, 2018 - Mar, 2019

Specially Appointed Assistant Professor, Global Center for Medical Engineering and Informatics,, Osaka University,
Nov, 2015 - Apr, 2018

Postdoctoral Scholar / Volunteer Affiliate, Department of Psychology, University of California, Berkeley
Apr, 2015 - Mar, 2018

JSPS Research Fellow (SPD), Graduate School of Frontier Biosciences,, Osaka University,
Feb, 2014 - Mar, 2015

JSPS Postdoctoral Fellow for Research Abroad, School of Psychology, University of Sussex
May, 2011 - Feb, 2014

Academy of Finland-JSPS Postdoc Fellow / BRAHE Postdoctoral Researcher, Institute of Biomedicine, Physiology, University of Helsinki
May, 2010 - Apr, 2013

Honorary Research Associate, Institute of Cognitive Neuroscience, University College London
Apr, 2006 - Mar, 2011

Ph.D. (Science), The Graduate University for Advanced Studies / National Institute for Physiological Sciences / JSPS Research Fellow (DC1)

Major Papers

Hierarchical representations of relative numerical magnitudes in the human frontoparietal cortex

Kido T, Yotsumoto Y, Hayashi MJ

Nature Communications, 16(1) 419, 2025 Peer-reviewedLast authorCorresponding author
Immediate effect of quadri-pulse stimulation on human brain microstructures and functions

Kimura I, Hayashi MJ, Amano K

Imaging Neuroscience, 2 1-15, 2024 Peer-reviewed
Effective connectivity in a duration selective cortico-cerebellar network

Protopapa F, Kulashekhar S, Hayashi MJ, Kanai R, Bueti D

Scientific Reports, 13 20674, 2023 Peer-reviewed
Longitudinal analysis of social isolation effects on finger tapping in the Blursday database

Gallego Hiroyasu EM, Laje R, Nomura K, Spiousas I, Hayashi MJ, Yotsumoto Y

Scientific Reports, 13 11277, 2023 Peer-reviewed
[Recent advances in brain stimulation techniques: The interface with cognitive psychology]

Kawashima T, Shibusawa S, Hayashi MJ, Ikeda T, Tanaka S

The Japanese Journal of Cognitive Psychology, 20(2) 91-101, 2023
Temporal perceptual learning distinguishes between empty and filled intervals

Li L, Yotsumoto Y, Hayashi MJ

Scientific Reports, 12 9824, 2022 Peer-reviewedLast authorCorresponding author
Attentional rhythmic blink: Theta/Alpha balance in neural oscillations determines the rhythmicity in visual sampling

Kawashima T, Hayashi MJ, Amano K

bioRxiv, 2022
Quadripulse stimulation: A replication study with a newly developed stimulator

Kimura I, Ugawa Y, Hayashi MJ, Amano K

Brain Stimulation, 15(3) 579-581, 2022 Peer-reviewedLast author
Microstructural properties of human brain revealed by fractional anisotropy can predict the after-effect of intermittent theta burst stimulation

Kimura I, Oishi H, Hayashi MJ, Amano K

Cerebral Cortex Communications, 3(1) tgab065, 2022 Peer-reviewedLast author
Longitudinal evaluation of the impact of COVID-19 pandemic confinement on loneliness, anxiety

Sugiyama S, Gallego-Hiroyasu EM, Nomura K, Hayashi MJ, Yotsumoto Y

The Japanese Journal of Psychology, 92(5), 2021 Peer-reviewed
Duration selectivity in right parietal cortex reflects the subjective experience of time

Hayashi MJ, Ivry RB

Journal of Neuroscience, 40(40) 7749-7758, 2020 Peer-reviewedLead authorCorresponding author
Chronotopic maps in supplementary motor area

Protopapa F, Hayashi MJ, Kulashekhar S, van der, Zwaag W, Battistella G, Murray MM, Kanai R, Bueti D

PLoS Biology, 17(3) e3000026, 2019 Peer-reviewed
Representations of time in human frontoparietal cortex

Hayashi MJ, van der Zwaag W, Bueti D, Kanai R

Communications Biology, 1(1) 233, Dec, 2018 Peer-reviewedLead authorCorresponding author
Exaggerated groups: Amplification in ensemble coding of temporal and spatial features

Kanaya S, Hayashi MJ, Whitney D

Proceedings of the Royal Society B: Biological Sciences, 285(1879) 20172770, 2018 Peer-reviewed
Age-dependent atypicalities in body- and face-sensitive activation of the EBA and FFA in individuals with ASD

Okamoto Y, Kosaka H, Kitada R, Seki A, Tanabe HC, Hayashi MJ, Kochiyama T, Saito DN, Yanaka HT, Munesue T …

Neuroscience Research, 119 38-52, Jun, 2017 Peer-reviewed
[Brain Mechanisms for Measuring Time: Population Coding of Durations]

Hayashi MJ

Brain Nerve, 68(11) 1385-1391, 2016 InvitedLead authorCorresponding author
Time adaptation shows duration selectivity in the human parietal cortex

Hayashi MJ, Ditye T, Harada T, Hashiguchi M, Sadato N, Carlson S, Walsh V, Kanai R

PLoS Biology, 13(9) e1002262, 2015 Peer-reviewedLead authorCorresponding author
Attenuation of the contingency detection effect in the extrastriate body area in autism spectrum disorder

Okamoto Y, Kitada R, Tanabe HC, Hayashi MJ, Kochiyama T, Munesue T, Ishitobi M, Saito DN, Yanaka HT, Omori M …

Neuroscience Research, 87 66-76, Oct, 2014 Peer-reviewed
Dissociable Neuroanatomical Correlates of Subsecond and Suprasecond Time Perception

Hayashi MJ, Kantele M, Walsh V, Carlson S, Kanai R

Journal of Cognitive Neuroscience, 26(8) 1685-1693, Aug, 2014 Peer-reviewedLead authorCorresponding author
The neural substrates of the warning effect: A functional magnetic resonance imaging study

Yoshida Y, Tanabe HC, Hayashi MJ, Kawamichi H, Kochiyama T, Sadato N

Neuroscience Research, 76(4) 230-239, 2013 Peer-reviewed
Neural activity changes associated with impulsive responding in the sustained attention to response task

Sakai H, Uchiyama Y, Shin D, Hayashi MJ, Sadato N

PLoS One, 8(6) e67391, 2013 Peer-reviewed
Numerical quantity affects time estimation in the suprasecond range

Hayashi MJ, Valli A, Carlson S

Neuroscience Letters, 543 7-11, 2013 Peer-reviewedLead authorCorresponding author
Interaction of numerosity and time in prefrontal and parietal cortex

Hayashi MJ, Kanai R, Tanabe HC, Yoshida Y, Carlson S, Walsh V, Sadato N

Journal of Neuroscience, 33(3) 883-893, 2013 Peer-reviewedLead authorCorresponding author
Hard to “tune in”: neural mechanisms of eye contact and joint attention in high-functioning autistic spectrum disorder

Tanabe HC, Kosaka H, Saito DN, Koike T, Hayashi MJ, Izuma K, Komeda H, Ishitobi M, Omori M, Munesue T …

Frontiers in Human Neuroscience, 6(268), 2012 Peer-reviewed
"Stay tuned": inter-individual neural synchronization during mutual gaze and joint attention.

Saito DN, Tanabe HC, Izuma K, Hayashi MJ, Morito Y, Komeda H, Uchiyama H, Kosaka H, Okazawa H, Fujibayashi Y …

Frontiers in Integrative Neuroscience, 4(127), 2010 Peer-reviewed
Hemispheric asymmetry of frequency-dependent suppression in the ipsilateral primary motor cortex during finger movement: a functional magnetic resonance imaging study.

Hayashi MJ, Saito DN, Aramaki Y, Asai T, Fujibayashi Y, Sadato N

Cerebral Cortex, 18(12) 2932-2940, 2008 Peer-reviewedLead author

Major Awards

2025

優秀賞（個人）, 情報通信研究機構成績優秀表彰

林正道
2019

Best Poster Award, The 2nd Project Meeting of 'Chronogenesis'

Masamichi Hayashi
2018

Young Investigator Award, 2nd Japanese Meeting for Human Brain Imaging

Masamichi Hayashi
2015

Best Presentation Award for Young Scientists, Comprehensive Brain Science Network

Masamichi Hayashi
2009

Graduate Student Best Poster Award, National Institute for Physiological Sciences

Masamichi Hayashi
2007

Young Investigator Award, 9th Japan Human Brain Mapping Society

Masamichi Hayashi

Major Research Projects

[Neural mechanisms of efficient spatiotemporal processing]

Fusion Oriented Research for Disruptive Science and Technology (FOREST), Japan Science and Technology Agency, Oct, 2024 - Mar, 2028

Masamichi J. Hayashi
[Induction of synesthetic perception with a non-invasive brain stimulation technique]

Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Research (Exploratory), Japan Society for the Promotion of Science, Jun, 2023 - Mar, 2026

Masamichi J. Hayashi
[Neural bases of the subjective experience of numerical magnitude]

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2026

Masamichi J. Hayashi

Major Misc.

時間感覚の文脈依存性とその神経機構

Clinical Neuroscience (中外医学社), 41(8) 1052-1054, Aug, 2023 Invited
Q&A–神経科学の素朴な疑問

林正道

Clinical Neuroscience (中外医学社), 40(2) 266-267, Feb, 2022 Invited
素顔のニューロサイエンティスト

林正道

Clinical Neuroscience (中外医学社), 36 124, Jan, 2018 Invited
[Brain areas involved in time perception]

Masamichi J. Hayashi

Clinical Neuroscience (Chugai-Igakusha), 33 600-601, May, 2015 Invited

Profile Information

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Major Research Projects

Major Misc.

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