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Psychology
Japan
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Psychology 53 4865 4510 6 5 276 8719

Toshinori Kitamura publications per year

The chart shows the history of publications by Toshinori Kitamura between 1975 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Toshinori Kitamura published across 51 years, from 1975 to 2025, averaging 6 papers a year. Output peaked at 21 publications in 1999. 19 of the 307 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1975 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 1999. 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 1 publication 1982: 0 publications 1983: 1 publication 1984: 3 publications 1985: 2 publications 1986: 1 publication 1987: 1 publication 1988: 2 publications 1989: 5 publications 1990: 2 publications 1991: 3 publications 1992: 1 publication 1993: 7 publications 1994: 9 publications 1995: 5 publications 1996: 4 publications 1997: 6 publications 1998: 18 publications 1999: 21 publications 2000: 17 publications 2001: 5 publications 2002: 17 publications 2003: 6 publications 2004: 8 publications 2005: 3 publications 2006: 8 publications 2007: 9 publications 2008: 11 publications 2009: 12 publications 2010: 6 publications 2011: 10 publications 2012: 7 publications 2013: 12 publications 2014: 15 publications 2015: 4 publications 2016: 4 publications 2017: 6 publications 2018: 1 publication 2019: 4 publications 2020: 3 publications 2021: 6 publications 2022: 9 publications 2023: 12 publications 2024: 10 publications 2025: 9 publications
1975 2025

307 publications in total across all disciplines

View publications per year as a table
Toshinori Kitamura: publications per year, 1975 to 2025
Year Publications
1975 1
1976 0
1977 0
1978 0
1979 0
1980 0
1981 1
1982 0
1983 1
1984 3
1985 2
1986 1
1987 1
1988 2
1989 5
1990 2
1991 3
1992 1
1993 7
1994 9
1995 5
1996 4
1997 6
1998 18
1999 21
2000 17
2001 5
2002 17
2003 6
2004 8
2005 3
2006 8
2007 9
2008 11
2009 12
2010 6
2011 10
2012 7
2013 12
2014 15
2015 4
2016 4
2017 6
2018 1
2019 4
2020 3
2021 6
2022 9
2023 12
2024 10
2025 9
Total 307
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Toshinori Kitamura publication distribution in Psychology in 2026

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

No. of scientists
200 400 600
Bar chart with 69 bars. Horizontal axis: publications, 31–40 to 705+. Vertical axis: number of scientists, 0 to 736. Most scientists, 736, have 101–110 publications. The last bar groups every scientist with 705 publications or more. The highlighted bar, 271–280 publications, is where this scientist sits. 31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31–40 publications 705+

This scientist: 276 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

View publications distribution as a table
Number of Psychology scientists by publication count, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
Publications Scientists This scientist
31–40 6
41–50 52
51–60 138
61–70 299
71–80 461
81–90 605
91–100 713
101–110 736
111–120 686
121–130 670
131–140 644
141–150 597
151–160 576
161–170 477
171–180 450
181–190 397
191–200 343
201–210 328
211–220 313
221–230 283
231–240 226
241–250 196
251–260 201
261–270 171
271–280 151 276
281–290 139
291–300 113
301–310 102
311–320 100
321–330 76
331–340 92
341–350 85
351–360 69
361–370 71
371–380 63
381–390 58
391–400 57
401–410 43
411–420 33
421–430 50
431–440 41
441–450 32
451–460 27
461–470 28
471–480 25
481–490 28
491–500 20
501–510 23
511–520 26
521–530 17
531–540 21
541–550 14
551–560 16
561–570 10
571–580 22
581–590 9
591–600 14
601–610 9
611–620 11
621–630 4
631–640 7
641–650 5
651–660 10
661–670 8
671–680 8
681–690 4
691–700 3
701–704 4
705+ 100
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Toshinori Kitamura D-index placement in Psychology in 2026

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

No. of scientists
200 400 600
Bar chart with 58 bars. Horizontal axis: D-Index, 30–31 to 144+. Vertical axis: number of scientists, 0 to 702. Most scientists, 702, have 32–33 D-Index. The last bar groups every scientist with 144 D-Index or more. The highlighted bar, 52–53 D-Index, is where this scientist sits. 30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30–31 D-Index 144+

This scientist: 53 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

View D-Index distribution as a table
Number of Psychology scientists by D-index, Research.com 2026 ranking edition. Based on 11,416 ranked scientists.
D-Index Scientists This scientist
30–31 398
32–33 702
34–35 671
36–37 659
38–39 641
40–41 671
42–43 617
44–45 558
46–47 495
48–49 487
50–51 445
52–53 390 53
54–55 408
56–57 345
58–59 325
60–61 321
62–63 248
64–65 290
66–67 218
68–69 219
70–71 215
72–73 183
74–75 169
76–77 132
78–79 137
80–81 120
82–83 112
84–85 86
86–87 101
88–89 83
90–91 77
92–93 70
94–95 78
96–97 58
98–99 53
100–101 57
102–103 48
104–105 53
106–107 46
108–109 24
110–111 35
112–113 27
114–115 32
116–117 31
118–119 22
120–121 16
122–123 24
124–125 18
126–127 11
128–129 19
130–131 10
132–133 16
134–135 10
136–137 12
138–139 8
140–141 5
142–143 12
144+ 98
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Research.com Recognitions

  • 2026 - Research.com Psychology in Japan Leader Award
  • 2025 - Research.com Psychology in Japan Leader Award
  • 2023 - Research.com Psychology in Japan Leader Award
  • 2022 - Research.com Psychology in Japan Leader Award

Overview

Toshinori Kitamura is a researcher affiliated with the Kitamura Institute of Mental Health Tokyo in Japan. Their academic work spans the fields of Medicine and Psychology, focusing primarily on Public Health, Environmental and Occupational Health, Clinical Psychology, Social Psychology, Obstetrics and Gynecology, and Pharmacy.

The main research topics explored by Kitamura include Maternal Mental Health During Pregnancy and Postpartum, Child and Adolescent Psychosocial and Emotional Development, Attachment and Relationship Dynamics, Infant Health and Development, Maternal and Perinatal Health Interventions, Pregnancy and Medication Impact, and Reinforcement Learning in Robotics.

Kitamura has contributed to numerous scientific publications, frequently collaborating with coauthors such as Ayako Hada, Yukiko Ohashi, Yuriko Usui, Mariko Minatani, and Mikiyo Wakamatsu. These collaborations have supported a significant body of work, including studies and analyses related to maternal and infant health.

Frequent publication venues where Kitamura's research appears include:

  • Healthcare
  • arXiv (Cornell University)
  • Psychiatry and Clinical Neurosciences Reports
  • Psychology
  • Research Square (Research Square)

Kitamura's recent scientific papers include:

  • "Reasons for Increased Caesarean Section Rate in Vietnam: A Qualitative Study among Vietnamese Mothers and Health Care Professionals" (2020, Healthcare)
  • "Prenatal and Intrapartum Factors Associated With Infant Temperament: A Systematic Review" (2021, Frontiers in Psychiatry)
  • "The Pregnancy-Unique Quantification of Emesis and Nausea (PUQE-24): Configural, Measurement, and Structural Invariance between Nulliparas and Multiparas and across Two Measurement Time Points" (2021, Healthcare)
  • "The Insomnia Severity Index: Factor Structure and Measurement and Structural Invariance across Perinatal Time Points" (2023, Healthcare)
  • "Tokophobia: Case Reports and Narratives of Ten Japanese Women" (2023, Healthcare)

In addition to journal publications, Kitamura has contributed to books published by Nova Publishers and Book Publisher International, including:

  • Dimensional Assessment of the Mother Baby Organization Project: The Many Facets of Psychological Difficulties among Expectant Women (2024)
  • Current Topics in Medicine and Medical Research Vol. 11 (2020)

Best Publications

  • Minamata disease revisited: an update on the acute and chronic manifestations of methyl mercury poisoning.

    Shigeo Ekino;Mari Susa;Tadashi Ninomiya;Keiko Imamura

  • Multicentre prospective study of perinatal depression in Japan: incidence and correlates of antenatal and postnatal depression.

    T. Kitamura;K. Yoshida;T. Okano;K. Kinoshita

  • Internet and mobile phone text-messaging dependency: Factor structure and correlation with dysphoric mood among Japanese adults

    Xi Lu;Junko Watanabe;Qingbo Liu;Masayo Uji

  • Depression as a potential causal factor in subsequent miscarriage in recurrent spontaneous aborters

    Mayumi Sugiura-Ogasawara;Toshiaki A. Furukawa;Yumi Nakano;Shiro Hori

  • Reliability and validity of the Japanese version of the Temperament and Character Inventory

    Nobuhiko Kijima;Eriko Tanaka;Nobuko Suzuki;Hina Higuchi

  • Personality traits as risk factors of depression and anxiety among Japanese students.

    Tomomi Matsudaira;Toshinori Kitamura

  • Lectin-like oxidized low density lipoprotein receptor-1 (LOX-1) serves as an endothelial receptor for advanced glycation end products (AGE)

    Tadashi Jono;Akira Miyazaki;Ryoji Nagai;Tatsuya Sawamura

  • One‐year prevalence and incidence of depression among first‐year university students in Japan: A preliminary study

    Atsuko Tomoda;Katsuaki Mori;Mitsuru Kimura;Takuya Takahashi

  • Social Support Questionnaire among psychiatric patients with various diagnoses and normal controls.

    T. A. Furukawa;H. Harai;T. Hirai;T. Kitamura

  • Factor structure of the Hospital Anxiety and Depression Scale in Japanese psychiatric outpatient and student populations

    Tomomi Matsudaira;Hiromi Igarashi;Hiroyoshi Kikuchi;Rikihachiro Kano

  • The Impact of Authoritative, Authoritarian, and Permissive Parenting Styles on Children’s Later Mental Health in Japan: Focusing on Parent and Child Gender

    Masayo Uji;Ayuko Sakamoto;Keiichiro Adachi;Toshinori Kitamura

  • Psychosocial study of depression in early pregnancy

    Toshinori Kitamura;Masumi Sugawara;Kensuke Sugawara;Mari Aoki Toda

  • A Validation Study of the Parental Bonding Instrument in a Japanese Population

    Toshinori Kitamura;Tadaharu Suzuki

  • Psychological and social correlates of the onset of affective disorders among pregnant women

    Unknown

  • Lifetime and 6-month prevalence of DSM-III-R psychiatric disorders in an urban community in Japan.

    Norito Kawakami;Hiroyuki Shimizu;Takashi Haratani;Noboru Iwata

  • Symptoms of psychoses. A factor-analytic study.

    Toshinori Kitamura;Yuji Okazaki;Akira Fujinawa;Masahiro Yoshino

  • Temperament and Character Inventory (TCI) as predictors of depression among Japanese college students

    Mayumi Naito;Nobuhiko Kijima;Toshinori Kitamura

  • Time to recovery of an inception cohort with hitherto untreated unipolar major depressive episodes

    Toshiaki A. Furukawa;Toshinori Kitamura;Kiyohisa Takahashi

  • Early parental separation experiences among patients with bipolar disorder and major depression: a case-control study.

    T.A Furukawa;A Ogura;T Hirai;S Fujihara

  • Public attitudes towards the mentally ill : A cross-cultural study between Bali and Tokyo

    Toshiyuki Kurihara;Motoichiro Kato;Shinji Sakamoto;Robert Reverger

  • Temporal variation of validity of self-rating questionnaires: repeated use of the General Health Questionnaire and Zung's Self-rating Depression Scale among women during antenatal and postnatal periods.

    T. Kitamura;S. Shima;M. Sugawara;M. A. Toda

Frequent Co-Authors

Toshi A. Furukawa
Toshi A. Furukawa Kyoto University
Kiyohisa Takahashi
Kiyohisa Takahashi Shiga University of Medical Science
Toshiaki A. Furukawa
Toshiaki A. Furukawa Kyoto University
Yutaka Ono
Yutaka Ono Keio University
Shigenobu Kanba
Shigenobu Kanba Kyushu University
Norito Kawakami
Norito Kawakami University of Tokyo
Seikoh Horiuchi
Seikoh Horiuchi Kumamoto University
Noboru Iwata
Noboru Iwata Kiryu University
Ryoji Nagai
Ryoji Nagai Tokai University
C. Robert Cloninger
C. Robert Cloninger Washington University in St. Louis

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