World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
44
Citations
7008
World Ranking
7013
National Ranking
15

Masaki Tomonaga 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 Masaki Tomonaga sits on this spectrum.

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 publications 705+

This scientist: 288 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

Masaki Tomonaga 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 Masaki Tomonaga sits on this spectrum.

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 D-Index 144+

This scientist: 44 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Overview

Masaki Tomonaga is affiliated with the University of Human Environments in Japan. Their research spans various fields, primarily psychology and neuroscience, with a focus on cognitive neuroscience and social psychology as well as developmental and educational psychology. Their work also engages with experimental and cognitive psychology alongside aspects of statistics and probability.

The scientist's contributions involve a range of topics including primate behavior and ecology, child and animal learning development, and face recognition and perception. Other areas of interest encompass visual perception and processing mechanisms, cognitive and developmental aspects of mathematical skills, evolutionary psychology and human behavior, and multisensory perception and integration.

Masaki Tomonaga has published extensively in several scientific venues. Frequent publication platforms include Animal Cognition with six papers, Journal of Comparative Psychology with five, Scientific Reports with three, Primates with three, and Developmental Science with two publications.

Selected recent papers include:

  • The evolution of quantitative sensitivity, 2021, Philosophical Transactions of the Royal Society B Biological Sciences
  • The contingency symmetry bias (affirming the consequent fallacy) as a prerequisite for word learning: A comparative study of pre-linguistic human infants and chimpanzees, 2021, Cognition
  • Colour matters more than shape for chimpanzees' recognition of developmental face changes, 2020, Scientific Reports
  • Body perception in chimpanzees (Pan troglodytes): The effect of body structure changes, 2020, Journal of Comparative Psychology
  • Body perception in chimpanzees and humans: The expert effect, 2020, Scientific Reports

Their frequent coauthors reflect collaborations with multiple researchers, including Yuri Kawaguchi, Jie Gao, Ikuma Adachi, Tomoko Imura, and Fumito Kawakami.

Best Publications

  • Imitation in neonatal chimpanzees (Pan troglodytes)

    Masako Myowa-Yamakoshi;Masaki Tomonaga;Masayuki Tanaka;Tetsuro Matsuzawa

  • Development of social cognition in infant chimpanzees (Pan troglodytes): face recognition, smiling, gaze, and the lack of triadic interactions

    Masaki Tomonaga;Masayuki Tanaka;Tetsuro Matsuzawa;Masako Myowa-Yamakoshi

  • Great apes use self-experience to anticipate an agent’s action in a false-belief test

    Fumihiro Kano;Christopher Krupenye;Satoshi Hirata;Masaki Tomonaga

  • Spontaneous synchronized tapping to an auditory rhythm in a chimpanzee

    Yuko Hattori;Masaki Tomonaga;Tetsuro Matsuzawa

  • Group Differences in the Mutual Gaze of Chimpanzees (Pan Troglodytes).

    Kim A. Bard;Masako Myowa-Yamakoshi;Masaki Tomonaga;Masayuki Tanaka

  • How chimpanzees look at pictures: a comparative eye-tracking study

    Fumihiro Kano;Masaki Tomonaga

  • Global and local processing in humans (Homo sapiens) and chimpanzees (Pan troglodytes): Use of a visual search task with compound stimuli.

    Joël Fagot;Masaki Tomonaga

  • An infant chimpanzee (Pan troglodytes) follows human gaze.

    Sanae Okamoto;Masaki Tomonaga;Kiyoshi Ishii;Nobuyuki Kawai

  • Emergence of symmetry in a visual conditional discrimination by chimpanzees (Pan troglodytes)

    Masaki Tomonaga;Tetsuro Matsuzawa;Kazuo Fujita;Jun'Hchi Yamamoto

  • Differential Prefrontal White Matter Development in Chimpanzees and Humans

    Tomoko Sakai;Akichika Mikami;Masaki Tomonaga;Mie Matsui

  • Relative numerosity discrimination by chimpanzees (Pan troglodytes): evidence for approximate numerical representations.

    Masaki Tomonaga

  • Preference for human direct gaze in infant chimpanzees (Pan troglodytes)

    Masako Myowa-Yamakoshi;Masaki Tomonaga;Masayuki Tanaka;Tetsuro Matsuzawa

  • Visual search for orientation of faces by a chimpanzee (Pan troglodytes): face-specific upright superiority and the role of facial configural properties.

    Masaki Tomonaga

  • Enumeration of briefly presented items by the chimpanzee (Pan troglodytes) and humans (Homo sapiens)

    Masaki Tomonaga;Tetsuro Matsuzawa

  • Face scanning in chimpanzees and humans: continuity and discontinuity

    Fumihiro Kano;Fumihiro Kano;Masaki Tomonaga

  • Tests for control by exclusion and negative stimulus relations of arbitrary matching to sample in a "symmetry-emergent" chimpanzee

    Masaki Tomonaga

  • Chimpanzees and Humans Mimic Pupil-Size of Conspecifics

    Mariska E. Kret;Masaki Tomonaga;Tetsuro Matsuzawa

  • Tool use task as environmental enrichment for captive chimpanzees

    Maura L. Celli;Masaki Tomonaga;Toshifumi Udono;Mikagu Teramoto

  • Developmental patterns of chimpanzee cerebral tissues provide important clues for understanding the remarkable enlargement of the human brain

    Tomoko Sakai;Mie Matsui;Akichika Mikami;Ludise Malkova

  • Sequential responding to arabic numerals with wild cards by the chimpanzee (Pan troglodytes)

    Masaki Tomonaga;Tetsuro Matsuzawa

Frequent Co-Authors

Tetsuro Matsuzawa
Tetsuro Matsuzawa California Institute of Technology
Toshikazu Hasegawa
Toshikazu Hasegawa University of Tokyo
Kazuo Fujita
Kazuo Fujita Kyoto University
Josep Call
Josep Call University of St Andrews
Michael A. Huffman
Michael A. Huffman Kyoto University
Kim A. Bard
Kim A. Bard University of Portsmouth
Shoji Itakura
Shoji Itakura Kyoto University
Mie Matsui
Mie Matsui Kanazawa University
Joël Fagot
Joël Fagot Aix-Marseille University
Mariska E. Kret
Mariska E. Kret Leiden University

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