World's Best Scientists 2026 revealed!
Hiroaki Kazui

Hiroaki Kazui

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Neuroscience 54 4899 4503 151 144 255 11378

Hiroaki Kazui publications per year

The chart shows the history of publications by Hiroaki Kazui between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hiroaki Kazui published across 40 years, from 1986 to 2025, averaging 7 papers a year. Output peaked at 20 publications in 2009. 16 of the 278 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1986 to 2025. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2009. 1986: 1 publication 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 1 publication 1993: 3 publications 1994: 3 publications 1995: 6 publications 1996: 5 publications 1997: 1 publication 1998: 3 publications 1999: 2 publications 2000: 9 publications 2001: 4 publications 2002: 4 publications 2003: 6 publications 2004: 3 publications 2005: 8 publications 2006: 10 publications 2007: 4 publications 2008: 11 publications 2009: 20 publications 2010: 19 publications 2011: 13 publications 2012: 11 publications 2013: 14 publications 2014: 5 publications 2015: 17 publications 2016: 15 publications 2017: 15 publications 2018: 5 publications 2019: 11 publications 2020: 11 publications 2021: 9 publications 2022: 7 publications 2023: 6 publications 2024: 7 publications 2025: 9 publications
1986 2025

278 publications in total across all disciplines

View publications per year as a table
Hiroaki Kazui: publications per year, 1986 to 2025
Year Publications
1986 1
1987 0
1988 0
1989 0
1990 0
1991 0
1992 1
1993 3
1994 3
1995 6
1996 5
1997 1
1998 3
1999 2
2000 9
2001 4
2002 4
2003 6
2004 3
2005 8
2006 10
2007 4
2008 11
2009 20
2010 19
2011 13
2012 11
2013 14
2014 5
2015 17
2016 15
2017 15
2018 5
2019 11
2020 11
2021 9
2022 7
2023 6
2024 7
2025 9
Total 278
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Hiroaki Kazui 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 Hiroaki Kazui sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 86 bars. Horizontal axis: publications, 38–47 to 887+. Vertical axis: number of scientists, 0 to 539. Most scientists, 539, have 98–107 publications. The last bar groups every scientist with 887 publications or more. The highlighted bar, 248–257 publications, is where this scientist sits. 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 scientist 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38–47 publications 887+

This scientist: 255 publications — 75th percentile

75% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Neuroscience scientists by publication count, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
Publications Scientists This scientist
38–47 18
48–57 79
58–67 193
68–77 323
78–87 406
88–97 452
98–107 539
108–117 505
118–127 522
128–137 469
138–147 456
148–157 459
158–167 397
168–177 383
178–187 350
188–197 302
198–207 306
208–217 262
218–227 242
228–237 220
238–247 203
248–257 174 255
258–267 176
268–277 175
278–287 125
288–297 116
298–307 127
308–317 128
318–327 99
328–337 89
338–347 78
348–357 96
358–367 66
368–377 59
378–387 65
388–397 54
398–407 48
408–417 49
418–427 34
428–437 31
438–447 30
448–457 31
458–467 36
468–477 40
478–487 35
488–497 30
498–507 23
508–517 26
518–527 20
528–537 23
538–547 20
548–557 20
558–567 17
568–577 14
578–587 20
588–597 20
598–607 19
608–617 18
618–627 17
628–637 11
638–647 11
648–657 11
658–667 8
668–677 7
678–687 11
688–697 10
698–707 4
708–717 6
718–727 5
728–737 5
738–747 9
748–757 9
758–767 3
768–777 7
778–787 7
788–797 6
798–807 2
808–817 2
818–827 7
828–837 0
838–847 9
848–857 3
858–867 1
868–877 3
878–886 6
887+ 100
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Hiroaki Kazui 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 Hiroaki Kazui sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 68 bars. Horizontal axis: D-Index, 30–31 to 163+. Vertical axis: number of scientists, 0 to 512. Most scientists, 512, have 46–47 D-Index. The last bar groups every scientist with 163 D-Index or more. The highlighted bar, 54–55 D-Index, is where this scientist sits. 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
30–31 D-Index 163+

This scientist: 54 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Neuroscience scientists by D-index, Research.com 2026 ranking edition. Based on 9,597 ranked scientists.
D-Index Scientists This scientist
30–31 42
32–33 172
34–35 296
36–37 435
38–39 459
40–41 456
42–43 467
44–45 478
46–47 512
48–49 435
50–51 425
52–53 418
54–55 392 54
56–57 357
58–59 334
60–61 328
62–63 260
64–65 278
66–67 239
68–69 250
70–71 210
72–73 200
74–75 189
76–77 170
78–79 146
80–81 113
82–83 126
84–85 100
86–87 84
88–89 99
90–91 84
92–93 85
94–95 72
96–97 76
98–99 45
100–101 49
102–103 43
104–105 32
106–107 45
108–109 50
110–111 32
112–113 39
114–115 32
116–117 29
118–119 27
120–121 19
122–123 23
124–125 27
126–127 16
128–129 24
130–131 13
132–133 21
134–135 17
136–137 14
138–139 15
140–141 10
142–143 10
144–145 13
146–147 9
148–149 8
150–151 6
152–153 6
154–155 7
156–157 7
158–159 10
160–161 4
162 8
163+ 100
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Overview

Hiroaki Kazui is affiliated with Kōchi University in Japan and has a research focus predominantly in medicine and neuroscience. Their work spans several subfields including neurology, cognitive neuroscience, psychiatry and mental health, cellular and molecular neuroscience, and public health.

Their research topics include cerebrospinal fluid and hydrocephalus, traumatic brain injury and neurovascular disturbances, dementia and cognitive impairment research, neurosurgical procedures and complications, functional brain connectivity studies, spinal dysraphism and malformations, as well as Alzheimer's disease research and treatments.

Hiroaki Kazui has contributed to multiple publications in notable venues. The primary journals where their work appears most frequently include:

  • Scientific Reports
  • International Journal of Geriatric Psychiatry
  • International Psychogeriatrics
  • Frontiers in Neurology
  • Research Square

Among recent papers, notable publications include:

  • "Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus (Third Edition): Endorsed by the Japanese Society of Normal Pressure Hydrocephalus" (2021, Neurologia medico-chirurgica)
  • "A multi-center, prospective study on the progression rate of asymptomatic ventriculomegaly with features of idiopathic normal pressure hydrocephalus on magnetic resonance imaging to idiopathic normal pressure hydrocephalus" (2020, Journal of the Neurological Sciences)
  • "Tap Test Can Predict Cognitive Improvement in Patients With iNPH-Results From the Multicenter Prospective Studies SINPHONI-1 and -2" (2021, Frontiers in Neurology)
  • "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)
  • "Thalamic pulvinar metabolism, sleep disturbances, and hallucinations in dementia with Lewy bodies: Positron emission tomography and actigraphy study" (2020, International Journal of Geriatric Psychiatry)

Hiroaki Kazui frequently collaborates with a core group of coauthors. These include Hideki Kanemoto, Manabu Ikeda, Tetsuo Kashibayashi, Kenji Yoshiyama, and Kazunari Ishii.

Best Publications

  • Guidelines for management of idiopathic normal pressure hydrocephalus: second edition.

    Etsuro Mori;Masatsune Ishikawa;Takeo Kato;Hiroaki Kazui

  • Guidelines for Management of Idiopathic Normal Pressure Hydrocephalus (Third Edition): Endorsed by the Japanese Society of Normal Pressure Hydrocephalus.

    Madoka Nakajima;Shigeki Yamada;Masakazu Miyajima;Kazunari Ishii

  • Validation of Grading Scale for Evaluating Symptoms of Idiopathic Normal-Pressure Hydrocephalus

    Yoshihiko Kubo;Hiroaki Kazui;Tetsuihiko Yoshida;Yumiko Kito

  • Lumboperitoneal shunt surgery for idiopathic normal pressure hydrocephalus (SINPHONI-2): an open-label randomised trial

    Hiroaki Kazui;Masakazu Miyajima;Etsuro Mori;Masatsune Ishikawa

  • The DYRK1A gene, encoded in chromosome 21 Down syndrome critical region, bridges between beta-amyloid production and tau phosphorylation in Alzheimer disease.

    Ryo Kimura;Kouzin Kamino;Mitsuko Yamamoto;Aidaralieva Nuripa

  • Does donepezil treatment slow the progression of hippocampal atrophy in patients with Alzheimer's disease?

    Mamoru Hashimoto;Hiroaki Kazui;Keiji Matsumoto;Yoko Nakano

  • Guidelines for management of idiopathic normal pressure hydrocephalus.

    Masatsune Ishikawa;Masaaki Hashimoto;Nobumasa Kuwana;Etsuro Mori

  • [Wechsler Adult Intelligence Scale-III (WAIS-III)].

    Daisuke Yamamoto;Hiroaki Kazui;Masatoshi Takeda

  • Visuoperceptual impairment in dementia with Lewy bodies.

    Etsuro Mori;Tatsuo Shimomura;Misato Fujimori;Nobutsugu Hirono

  • Impact of White Matter Changes on Clinical Manifestation of Alzheimer’s Disease A Quantitative Study

    Nobutsugu Hirono;Hajime Kitagaki;Hiroaki Kazui;Mamoru Hashimoto

  • 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

  • Regional cerebral glucose metabolism in dementia with Lewy bodies and Alzheimer's disease: a comparative study using positron emission tomography

    Toru Imamura;Kazunari Ishii;Masahiro Sasaki;Hajime Kitagaki

  • Apolipoprotein E ε4 and the pattern of regional brain atrophy in Alzheimer’s disease

    M. Hashimoto;M. Yasuda;S. Tanimukai;M. Matsui

  • Medial temporal and whole-brain atrophy in dementia with Lewy bodies A volumetric MRI study

    Mamoru Hashimoto;H. Kitagaki;T. Imamura;N. Hirono

  • The value of the cerebrospinal fluid tap test for predicting shunt effectiveness in idiopathic normal pressure hydrocephalus

    Masatsune Ishikawa;Masaaki Hashimoto;Etsuro Mori;Nobumasa Kuwana

  • Cortical activation during retrieval of arithmetical facts and actual calculation: a functional magnetic resonance imaging study.

    Hiroaki Kazui;Hajime Kitagaki;Etsuro Mori

  • Impact of emotion on memory. Controlled study of the influence of emotionally charged material on declarative memory in Alzheimer's disease.

    Hiroaki Kazui;Etsuro Mori;Mamoru Hashimoto;Nobutsugu Hirono

  • Cognitive Impairment in Patients with Idiopathic Normal Pressure Hydrocephalus

    Atsushi Ogino;Hiroaki Kazui;Noriko Miyoshi;Mamoru Hashimoto

  • Cognitive Loss in Dementia With Lewy Bodies and Alzheimer Disease

    Tatsuo Shimomura;Etsuro Mori;Hikari Yamashita;Toru Imamura

  • One-year outcome in patients with idiopathic normal-pressure hydrocephalus: comparison of lumboperitoneal shunt to ventriculoperitoneal shunt

    Masakazu Miyajima;Hiroaki Kazui;Etsuro Mori;Masatsune Ishikawa

  • Cognitive impairment in patients with idiopathic normal pressure hydrocephalus

    Hiroaki Kazui

Frequent Co-Authors

Masatoshi Takeda
Masatoshi Takeda Izumi University
Ryota Hashimoto
Ryota Hashimoto National Center of Neurology and Psychiatry
Etsuro Mori
Etsuro Mori Tohoku University
Manabu Ikeda
Manabu Ikeda Osaka University
Ryouhei Ishii
Ryouhei Ishii Osaka Metropolitan University
Haruhiko Kishima
Haruhiko Kishima Osaka University
Nakao Iwata
Nakao Iwata Fujita Health University
Masafumi Ihara
Masafumi Ihara Kyoto University
Norio Ozaki
Norio Ozaki Nagoya University
Masashi Ikeda
Masashi Ikeda Nagoya University

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