History and State of Neuropsychology in Japan: A Modest Proposal from a Clinical Psychological Perspective

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Maiko Sakamoto Pomeroy Yoko Okamura Nicholas S. Thaler


Introduction: Neuropsychology is a branch of clinical psychology that specializes in brain-behavior relationships by assessing cognition, behavior, and emotion. Neuropsychology was initially developed in the United States and Europe, and their practices have shaped other countries’ practices such as Japan. However, neuropsychology in Japan also has its own unique history.

Aims: The present paper aims to discuss the history, work environment and licensure, and prospects of Japanese neuropsychology by comparing them to those in the United States.

Methods: Information on four topics, including 1) the history and development of neuropsychology and the license of a clinical neuropsychologist in the United States, 2) the history and current situation of neuropsychology in Japan, 3) the background and process of the licensure in clinical psychology and neuropsychology in Japan, and 4) future directions and recommendations, were gathered through literature searches, official organization websites, and personal communication with clinical psychologists and other professionals in Japan.

Results: While clinical neuropsychologists in the United States have a background in clinical psychology, most of the people conducting neuropsychological assessments and research in Japan are physicians, occupational therapists, and speech-language-hearing therapists. This is believed to be due to differences in the system of health insurance, education and training, cultural factors shaping psychology practice in Japan, funding opportunities, and the research environment.

Conclusion: The care of patients who have neurological injuries and illnesses is one of the most crucial tasks for clinical neuropsychologists. It is important for clinical neuropsychologists in Japan to improve their knowledge and skills in clinical psychology to match global standards.

Keywords: Neuropsychology, History and State of Neuropsychology in Japan, Neuropsychology in Japan

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POMEROY, Maiko Sakamoto; OKAMURA, Yoko; THALER, Nicholas S.. History and State of Neuropsychology in Japan: A Modest Proposal from a Clinical Psychological Perspective. Medical Research Archives, [S.l.], v. 11, n. 1, jan. 2023. ISSN 2375-1924. Available at: <https://esmed.org/MRA/mra/article/view/3485>. Date accessed: 02 apr. 2023. doi: https://doi.org/10.18103/mra.v11i1.3485.
Research Articles


1. Beaumont JG. Introduction to Neuropsychology. Guilford Press; 2008.
2. Carlson NR, Buskist W, Enzle ME, Heth CD, Alder G. Psychology: The Science of Behaviour. 2nd ed. Pearson Education Canada Ltd.; 2002.
3. Duncan J. How Intelligence Happens. Yale University Press; 2010.
4. Eling P. History of neuropsychological assessment. Front Neurol Neurosci. 2019(44):164-178.
5. Wechsler D. Wechsler-Bellevue Intelligence Scale, Form II. Psychological Corporation; 1946.
6. Loring DW, Larrabee GJ. Sensitivity of the Halstead and Wechsler test batteries to brain damage: Evidence from Reitan's original validation sample. Clin Neuropsychol. 2006;20(2):221-229.
7. Kaplan E. A Process Approach to Neuropsychological Assessment. American Psychological Association; 1988.
8. American Psychological Association. Clinical Neuropsychology. 2022. Accessed November 24, 2022. https://www.apa.org/ed/graduate/specialize/neuropsychology
9. National Academy of Neuropsychology Policy & Planning Committee. NAN definition of a clinical neuropsychologist. 2001. Accessed November 19, 2022. http://nanonline.org/NAN/Files/PAIC/PDFs/NANPositionDefNeuro.pdf
10. Ardila A. Houston Conference: Need for more fundamental knowledge in neuropsychology. Neuropsychol Rev. 2002;12(3):127-130.
11. Fujii DE, editor. The Neuropsychology of Asian-Americans. New York: Taylor & Francis Group; 2011.
12. Guidelines of the INS-Division 40 Task Force on Education, Accreditation, and Credentialing. Clin Neuropsychol. 1987;1:29– 34.
13. American Board of Professional Psychology. Clinical Neuropsychology. Accessed November 24, 2022. https://abpp.org/application-information/learn-about-specialty-boards/clinical-neuropsychology/
14. Isomura-Motoki A, Mimura M. Neuropsychology in Japan. In Fujii DE, editor. The Neuropsychology of Asian Americans. New York: Taylor & Francis Group; 2011:237-245.
15. Yamadori A. [A very brief history of the neuropsychological association of Japan]. Nihon shinkei gakkai no ayumi: Kaiko to Tenbou. Japanese Journal of Neuropsychology. 2004;20(3):157-163. Japanese.
16. Onishi T. [About Aphasia]. Shitsugosyo ni tsuite. Japanese Journal of Geriatric Psychiatry. 1893;50:10-13. Japanese.
17. Watanabe E. [A case of cortical motor aphasia with progressive muscular atrophy]. Hishitsu undousei shitsugoshou to enzuikhumahi oyobi shinkousei ishuku wo gappeisuru ichikanjya ni tsuite. Okayama Igakukai Zasshi. 1893;40:138-144. Japanese.
18. Hamanaka T. [Acceptance of western neuropsychology of the 19th century in Japan]. Nihon Shinkei Gakkai souritsu izen no nihon ni okeru 19-seiki seiou shinkeisinnrigaku no jyuyousi. Seishin-Igaku. 2002;44(10):1119-1130. Japanese.
19. Murai T, Hadano K, Hamanaka T. Current issues in neuropsychological assessment in Japan. In Rerraro FR, editor.Minority and Cross-Cultural Aspects of Neuropsychological Assessment. Lisse: Swets & Zeitlinger Publishers. 2002;99-127.
20. Ohashi H. [Aphasia, Apraxia and Agnosia]. Shitsugo・Shikkou・Shitunin. Tokyo: Igakushoin; 1960. Japanese.
21. Ohashi H. [Clinical Neuropathology]. Risho nou byourigaku. Tokyo: Igakushoin; 1965. Japanese.
22. Torii H. [Neuropsychology Association of Japan]. Nihon shinkei shinri gakkai. Saishinseishinigaku. 2003;8:267-275.
23. Hamanaka T. One hundred years of neuropsychology in Japan: Retrospect and prospect. Neuropsychology Review; 1994;4(4):289-298.
24. Boake C, Bieliauskas LA. Development of clinical neuropsychology as a psychological specialty: A timeline of major events. The ABPP Specialist. 2007;26:42–43.
25. Rourke BP, Murji S. A history of the International Neuropsychological Society: The early years (1955–1985). J Int Neuropsychol Soc. 2000;6:491–509.
26. Kouzuki M. [Neuropsychological assessments]. Shinkei shinrigakuteki kensa. Japanese Journal of Medical Technology, 2017;66:11-21. Japanese.
27. Sato Y, Moroto A, Furuichi T, Tamura M, Nonogaki Z, Asai T, et al. [Involvement of clinical laboratory technicians in the memory/dementia outpatient clinics: Assessments by clinical laboratory technicians.] Monowasure・Ninchisho gairai ni okeru rinsyoukensagishi no kakawari: Kensagishi niyoru shinsatumae kensani tuite. Japanese Journal of Rural Medicine. 2021;70(2):177-183. Japanese.
28. Bush SS. The national academy of neuropsychology at 35: The developmental history. Arch Clin Neuropsychol. 2011;26(4):287-305.
29. Maeshima S, Osawa A. Recommendations for obtaining a clinical Neuropsychologist certification: From the viewpoint of a physiatrist in rehabilitation medicine. Higher Brain Function Research. 2022;42 (2):177-181. Japanese. https://doi.org/10.2496/hbfr.42.177
30. Sunohara M, Sasaki J, Kogo S, Ryder AG. Japanese clinical psychologists' consensus beliefs about mental health: A mixed‐methods approach. Japanese Psychological Research. 2022; 64(2): 109-126. https://doi.org/10.1111/jpr.12410
31. Foundation of the Japanese Certification Board for Clinical Psychologists. [Professional Duties of a Clinical Psychologist]. Rinshou shinrishi no senmon gyomu. Accessed November 3, 2022. Japanese. http://fjcbcp.or.jp/rinshou/gyoumu/
32. Sakamoto, M. Neuropsychology in Japan: History, current challenges, and future prospects. Clin Neuropsychol. 2016;30(8):1278-1295.
33. Maruyama K. [Policy making process of the certified public psychologists act in Japan]. Kouninsinrisi-ho no seisakukeisei・ketteikatei. Nagoya Higher Education Research. 2016;16:133-154. Japanese.
34. Ministry of Health, Labour and Welfare. Regulations for enforcement of the certified public psychologist act. Accessed November 4, 2022. Japanese. https://www.mhlw.go.jp/web/t_doc_keyword?keyword=%E5%85%AC%E8%AA%8D%E5%BF%83%E7%90%86%E5%B8%AB%E6%B3%95&dataId=80ab6108&dataType=0&pageNo=1&mode=0
35. Shimoyama H. On the developmental task of clinical psychology in Japan. Bulletin of School of Education University of Tokyo. 2001;41:273-281.
36. Mori E. [Current and future perspective on cognitive assessment tools for dementia]. Ninchisho nitaisuru ninchikinoukensa no genjyo to syourai. Igaku no Ayumi. 2016;257(5):403-409. Japanese.
37. Midorikawa A, Mori E. [Clinical Neuropsychologist: A Recommendation for Qualification]. Rinsyo shinkei shinrishi: Gakkai ninteishikaku shutoku no osusume. Higher Brain Function Research. 2022;42(2):170-171. Japanese. https://doi.org/10.2496/hbfr.42.170.
38. Certification Committee of Clinical Neuropsychologists. [Certification examination]. Shikaku nintei shiken. Accessed November 3, 2022. Japanese. https://www.jccn.info/
39. Certification Committee of Clinical Neuropsychologists. [Regulations for the clinical neuropsychologist system]. Rinsyo shinkei shinrishi seidokisoku. Accessed November 3, 2022. Japanese. https://www.jccn.info/_files/ugd/52637e_9db0a694ba7d4ed58446303b6b495fc7.pdf
40. Sakai T, Sawai T, Takizawa T, Fukushima O, Shimada K. [Historical development of the systems of medical education and medical licensure and its effect on the evolution of medical schools in Japan]. Wagakunino igakukyouiku・ishisikakuhuyoseido no rekishitekihensen to igakkou no hatten katei. Medical Education. 2010;41(5):337-346. Japanese. https://doi.org/10.11307/mededjapan.41.337
41. Tajima A. [Contemporary history of occupational therapy in Japan (1965-1975): Conflicts between professionalization and identity]. Sagyo ryohoushi no gendaishi (1965-1975): Iryousyokuka to dokujisei no hazamade. Core Ethics. 2008;(4):175-191. Japanese. http://doi.org/10.34382/00005379
42. Nomura Y. [The Birth of a speech and Hearing Therapist]. Gengo chokakushi no tanjyo. Gakujyutsu no Doukou. 1999;4(2):52-54. Japanese. https://doi.org/10.5363/tits.4.52
43. Hessen E, Hokkanen L, Ponsford J, van Zandvoort M, Watts A, Evans J, et al. Core competencies in clinical neuropsychology training across the world. Clin Neuropsychol. 2018;32(4):642-656. doi:10.1080/13854046.2017.1413210
44. Hirabayashi H, Abe J, Nakashima K, Hayashi K. [Psychologist]. Shinrishi. Sogo Rehabilitation. 2007;35(6): 551-554. Japanese. https://doi.org/10.11477/mf.1552100957