World's Best Scientists 2026 revealed!

D-Index & Metrics

Neuroscience

D-Index
37
Citations
5807
World Ranking
8781
National Ranking
322

Ryouhei Ishii publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where Ryouhei Ishii sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 184 publications — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

Ryouhei Ishii D-index placement in Neuroscience in 2026

The chart shows the D-index (discipline H-index) distribution of Neuroscience scientists ranked by Research.com in 2026. The highlighted bar marks where Ryouhei Ishii sits on this spectrum.

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 37 D-Index — 10th percentile

10% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Overview

Ryouhei Ishii is affiliated with Osaka Metropolitan University in Japan. Their research contributions span key areas of neuroscience and medicine, with a particular focus on cognitive and clinical applications.

The main fields of study in their work include:

  • Neuroscience (78 publications)
  • Medicine (49 publications)

Their research also covers several subfields, notably:

  • Cognitive Neuroscience (68 publications)
  • Psychiatry and Mental health (12 publications)
  • Neurology (9 publications)
  • Clinical Psychology (6 publications)
  • Cardiology and Cardiovascular Medicine (6 publications)

Ishii's main topics of work focus on:

  • EEG and Brain-Computer Interfaces (46 publications)
  • Functional Brain Connectivity Studies (40 publications)
  • Neural dynamics and brain function (20 publications)
  • Neural and Behavioral Psychology Studies (16 publications)
  • Heart Rate Variability and Autonomic Control (10 publications)
  • Stroke Rehabilitation and Recovery (8 publications)
  • Dementia and Cognitive Impairment Research (6 publications)

Among recent papers, their research includes:

  • Withdrawal: Remote Reminiscence Using Immersive Virtual Reality May Be Efficacious for Reducing Anxiety in Patients with Mild Cognitive Impairment Even in COVID-19 Pandemic, 2021, Biological and Pharmaceutical Bulletin
  • EEG resting-state networks in Alzheimer's disease associated with clinical symptoms, 2023, Scientific Reports
  • Special Report on the Impact of the COVID-19 Pandemic on Clinical EEG and Research and Consensus Recommendations for the Safe Use of EEG, 2020, Clinical EEG and Neuroscience
  • Motor-Related Mu/Beta Rhythm in Older Adults: A Comprehensive Review, 2023, Brain Sciences
  • A deep learning model for the detection of various dementia and MCI pathologies based on resting-state electroencephalography data: A retrospective multicentre study, 2023, Neural Networks

Frequent publication venues for Ishii's work include:

  • Clinical Neurophysiology (9 publications)
  • Frontiers in Human Neuroscience (6 publications)
  • Frontiers in Psychiatry (4 publications)
  • Clinical EEG and Neuroscience (4 publications)
  • Scientific Reports (3 publications)

Key collaborators who have coauthored extensively with Ishii are:

  • Yasuo Naito (21 publications)
  • Masaya Ueda (20 publications)
  • Keita Ueno (19 publications)
  • Masahiro Hata (15 publications)
  • Yasunori Aoki (10 publications)

Best Publications

  • Effect of bilingualism on cognitive control in the Simon task: evidence from MEG.

    Ellen Bialystok;Fergus I. M. Craik;Cheryl L. Grady;Wilkin Chau

  • Medial prefrontal cortex generates frontal midline theta rhythm

    Ryouhei Ishii;Kazuhiro Shinosaki;Satoshi Ukai;Tsuyoshi Inouye

  • Functional connectivity assessed by resting state EEG correlates with cognitive decline of Alzheimer’s disease – An eLORETA study

    Masahiro Hata;Hiroaki Kazui;Toshihisa Tanaka;Ryouhei Ishii

  • Resting-state EEG source localization and functional connectivity in schizophrenia-like psychosis of epilepsy.

    Leonides Canuet;Ryouhei Ishii;Roberto D. Pascual-Marqui;Masao Iwase

  • Neuroimaging evidence for cortical involvement in the preparation and in the act of swallowing.

    Rainer Dziewas;Peter Sörös;Ryouhei Ishii;Wilkin Chau

  • Healthy and Pathological Brain Aging: From the Perspective of Oscillations, Functional Connectivity, and Signal Complexity.

    Ryouhei Ishii;Leonides Canuet;Yasunori Aoki;Masahiro Hata

  • Resting-State Network Disruption and APOE Genotype in Alzheimer's Disease: A lagged Functional Connectivity Study

    Leonides Canuet;Ivan Tellado;Veronica Couceiro;Carmen Fraile

  • Frontal midline theta rhythm and gamma power changes during focused attention on mental calculation: an MEG beamformer analysis.

    Ryouhei Ishii;Leonides Canuet;Tsutomu Ishihara;Yasunori Aoki

  • Determination of activation areas in the human auditory cortex by means of synthetic aperture magnetometry

    Anthony T Herdman;Andreas Wollbrink;Andreas Wollbrink;Wilkin Chau;Ryouhei Ishii;Ryouhei Ishii

  • Factors associated with impaired quality of life in younger and older adults with epilepsy.

    Leonides Canuet;Ryouhei Ishii;Masao Iwase;Koji Ikezawa

  • A Novel Palliative Care Approach Using Virtual Reality for Improving Various Symptoms of Terminal Cancer Patients: A Preliminary Prospective, Multicenter Study

    Kazuyuki Niki;Yoshiaki Okamoto;Isseki Maeda;Ichiro Mori

  • Detection of EEG-resting state independent networks by eLORETA-ICA method

    Yasunori Aoki;Ryouhei Ishii;Roberto D. Pascual-Marqui;Leonides Canuet

  • Chronic repetitive transcranial magnetic stimulation increases hippocampal neurogenesis in rats

    Eiko Ueyama;Satoshi Ukai;Satoshi Ukai;Asao Ogawa;Masakiyo Yamamoto

  • Theta rhythm increases in left superior temporal cortex during auditory hallucinations in schizophrenia: a case report.

    Ryouhei Ishii;Kazuhiro Shinosaki;Yoshitaka Ikejiri;Satoshi Ukai

  • Neuroimaging studies in patients with Charles Bonnet Syndrome.

    Hiroaki Kazui;Ryouhei Ishii;Tetsuhiko Yoshida;Koji Ikezawa

  • An integrative MEG–fMRI study of the primary somatosensory cortex using cross-modal correspondence analysis

    Matthias Schulz;Matthias Schulz;Wilkin Chau;Simon J. Graham;Anthony R. McIntosh

  • Cortical oscillatory power changes during auditory oddball task revealed by spatially filtered magnetoencephalography

    Ryouhei Ishii;Leonides Canuet;Anthony Herdman;Atsuko Gunji

  • Frequency-dependent spatial distribution of human somatosensory evoked neuromagnetic fields

    Masayuki Hirata;Amami Kato;Masaaki Taniguchi;Hirotomo Ninomiya

  • Post-movement beta rebound abnormality as indicator of mirror neuron system dysfunction in autistic spectrum disorder: an MEG study.

    Eiko Honaga;Ryouhei Ishii;Ryu Kurimoto;Leonides Canuet

  • Impaired regional hemodynamic response in schizophrenia during multiple prefrontal activation tasks: a two-channel near-infrared spectroscopy study.

    Koji Ikezawa;Masao Iwase;Ryouhei Ishii;Michiyo Azechi

Frequent Co-Authors

Masatoshi Takeda
Masatoshi Takeda Izumi University
Hiroaki Kazui
Hiroaki Kazui Kōchi University
Roberto D. Pascual-Marqui
Roberto D. Pascual-Marqui University of Zurich
Ryota Hashimoto
Ryota Hashimoto National Center of Neurology and Psychiatry
Christo Pantev
Christo Pantev University of Münster
Manabu Ikeda
Manabu Ikeda Osaka University
Masayuki Hirata
Masayuki Hirata Osaka University
Bernhard Ross
Bernhard Ross University of Toronto
Andreas J. Fallgatter
Andreas J. Fallgatter University of Tübingen
Nakao Iwata
Nakao Iwata Fujita Health University

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