World's Best Scientists 2026 revealed!
Toshiaki Onitsuka

Toshiaki Onitsuka

D-Index & Metrics

Neuroscience

D-Index
41
Citations
6189
World Ranking
7895
National Ranking
267

Toshiaki Onitsuka 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 Toshiaki Onitsuka 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: 130 publications — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Toshiaki Onitsuka 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 Toshiaki Onitsuka 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: 41 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Overview

Toshiaki Onitsuka is affiliated with Kyushu University in Japan and has contributed extensively to research in medicine and neuroscience. Their work primarily focuses on cognitive neuroscience, psychiatry and mental health, pharmacology, experimental and cognitive psychology, as well as clinical psychology.

Their main research topics include:

  • Schizophrenia research and treatment
  • Functional Brain Connectivity Studies
  • Treatment of Major Depression
  • Neural dynamics and brain function
  • Health Systems, Economic Evaluations, Quality of Life
  • Bipolar Disorder and Treatment
  • Health Policy Implementation Science

Toshiaki Onitsuka has published numerous papers in several scientific venues, most frequently in:

  • Neuropsychopharmacology Reports
  • Psychiatry and Clinical Neurosciences
  • Frontiers in Psychiatry
  • Molecular Psychiatry
  • Clinical EEG and Neuroscience

Significant recent publications include:

  • Neuronal imbalance of excitation and inhibition in schizophrenia: a scoping review of gamma-band ASSR findings, 2022, Psychiatry and Clinical Neurosciences
  • Toward recovery in schizophrenia: Current concepts, findings, and future research directions, 2022, Psychiatry and Clinical Neurosciences
  • Trends in big data analyses by multicenter collaborative translational research in psychiatry, 2021, Psychiatry and Clinical Neurosciences

The scientist has collaborated frequently with other researchers including:

  • Ryota Hashimoto
  • Junya Matsumoto
  • Kenichiro Miura
  • Naomi Hasegawa
  • Naoki Hashimoto

Best Publications

  • Middle and Inferior Temporal Gyrus Gray Matter Volume Abnormalities in First-Episode Schizophrenia: An MRI Study

    Toshiaki Onitsuka;Martha Elizabeth Shenton;Dean F. Salisbury;Chandlee C. Dickey

  • Progressive decrease of left Heschl gyrus and planum temporale gray matter volume in first-episode schizophrenia: a longitudinal magnetic resonance imaging study.

    Kiyoto Kasai;Martha Elizabeth Shenton;Dean F. Salisbury;Yoshio Hirayasu

  • Abnormal asymmetries in subcortical brain volume in schizophrenia.

    N Okada;M Fukunaga;F Yamashita;D Koshiyama

  • Middle and inferior temporal gyrus gray matter volume abnormalities in first-episode schizophrenia: an MRI study.

    Unknown

  • White matter microstructural alterations across four major psychiatric disorders: mega-analysis study in 2937 individuals

    Daisuke Koshiyama;Masaki Fukunaga;Naohiro Okada;Kentaro Morita

  • Spontaneous Gamma Activity in Schizophrenia.

    Yoji Hirano;Naoya Oribe;Naoya Oribe;Naoya Oribe;Shigenobu Kanba;Toshiaki Onitsuka

  • Fusiform gyrus volume reduction in first-episode schizophrenia: a magnetic resonance imaging study.

    Chang Uk Lee;Martha E. Shenton;Dean F. Salisbury;Kiyoto Kasai

  • Differences and Similarities in Insular and Temporal Pole MRI Gray Matter Volume Abnormalities in First-Episode Schizophrenia and Affective Psychosis

    Kiyoto Kasai;Martha E. Shenton;Dean F. Salisbury;Toshiaki Onitsuka

  • Fusiform gyrus volume reduction and facial recognition in chronic schizophrenia.

    Toshiaki Onitsuka;Martha E. Shenton;Kiyoto Kasai;Paul G. Nestor

  • Functional and structural deficits in brain regions subserving face perception in schizophrenia.

    Toshiaki Onitsuka;Margaret A. Niznikiewicz;Kevin M. Spencer;Melissa Frumin

  • Gamma band neural synchronization deficits for auditory steady state responses in bipolar disorder patients

    Yuko Oda;Toshiaki Onitsuka;Rikako Tsuchimoto;Shogo Hirano

  • P300 in response to the subject's own face.

    Hideaki Ninomiya;Toshiaki Onitsuka;Chung Ho Chen;Eigo Sato

  • Reduced high and low frequency gamma synchronization in patients with chronic schizophrenia.

    Rikako Tsuchimoto;Shigenobu Kanba;Shogo Hirano;Naoya Oribe

  • Cavum septi pellucidi in first-episode schizophrenia and first-episode affective psychosis: an MRI study

    Kiyoto Kasai;Robert William McCarley;Dean F. Salisbury;Dean F. Salisbury;Toshiaki Onitsuka

  • Differentiation between major depressive disorder and bipolar disorder by auditory steady-state responses.

    Shuichi Isomura;Toshiaki Onitsuka;Rikako Tsuchimoto;Itta Nakamura

  • Review of neurophysiological findings in patients with schizophrenia

    Toshiaki Onitsuka;Naoya Oribe;Itta Nakamura;Shigenobu Kanba

  • Abnormal Neural Oscillatory Activity to Speech Sounds in Schizophrenia : A Magnetoencephalography Study

    Shogo Hirano;Yoji Hirano;Toshihiko Maekawa;Choji Obayashi

  • Occipital lobe gray matter volume in male patients with chronic schizophrenia: A quantitative MRI study.

    Toshiaki Onitsuka;Robert William McCarley;Noriomi Kuroki;Chandlee C. Dickey;Chandlee C. Dickey

  • Neuronal imbalance of excitation and inhibition in schizophrenia: a scoping review of gamma‐band ASSR findings

    Unknown

  • Dissociable contributions of MRI volume reductions of superior temporal and fusiform gyri to symptoms and neuropsychology in schizophrenia

    Paul Gerard Nestor;Paul Gerard Nestor;Toshiaki Onitsuka;Toshiaki Onitsuka;Ronald Joseph Gurrera;Margaret A. Niznikiewicz

  • Decreased spatial frequency sensitivities for processing faces in male patients with chronic schizophrenia.

    Choji Obayashi;Taisuke Nakashima;Taisuke Nakashima;Toshiaki Onitsuka;Toshihiko Maekawa

  • Fusiform Gyrus Volume Reduction in First-Episode Schizophrenia

    Chang Uk Lee;Martha E. Shenton;Dean F. Salisbury;Kiyoto Kasai

Frequent Co-Authors

Shigenobu Kanba
Shigenobu Kanba Kyushu University
Kiyoto Kasai
Kiyoto Kasai University of Tokyo
Martha E. Shenton
Martha E. Shenton Harvard University
Ryota Hashimoto
Ryota Hashimoto National Center of Neurology and Psychiatry
Robert W. McCarley
Robert W. McCarley Harvard Medical School
Kevin M. Spencer
Kevin M. Spencer VA Boston Healthcare System
Norio Ozaki
Norio Ozaki Nagoya University
Ron Kikinis
Ron Kikinis Brigham and Women's Hospital
Margaret A. Niznikiewicz
Margaret A. Niznikiewicz Harvard University
Ferenc A. Jolesz
Ferenc A. Jolesz Brigham and Women's Hospital

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