Personnel Information

写真a

Takayuki OKADA


Job title

Professor

Research Areas, Keywords

forensic psychiatry

Field Introduction URL

精神行動医科学分野（犯罪精神医学担当）

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Graduating School 【 display / non-display 】

  • University of Tsukuba, Faculty of Medicine, 1991.03, Graduated

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Graduate School 【 display / non-display 】

  • University of Tsukuba, Graduate School, Division of Medicine, Doctor's Course, 1994.03, Completed

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Campus Career 【 display / non-display 】

  • 2015.09
    -
    2019.01
    Tokyo Medical and Dental University， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Cognitive and Behavioral Medicine， Psychiatry and Behavioral Sciences， Professor
  • 2015.09
    -
    Now
    Institute of Science Tokyo， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Cognitive and Behavioral Medicine， Psychiatry and Behavioral Sciences， Professor
  • 2019.02
    -
    2024.09
    Tokyo Medical and Dental University， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Cognitive and Behavioral Medicine， Psychiatry and Behavioral Sciences， Professor
  • 2024.10
    -
    Now
    Institute of Science Tokyo， -， Graduate Schools， Cognitive and Behavioral Medicine， Department of Psychiatry and Behavioral Sciences， Professor
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Academic Society Affiliations 【 display / non-display 】

  • American Academy of Psychiatry and the Law

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Research Areas 【 display / non-display 】

  • Psychiatry

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Qualification Acquired 【 display / non-display 】

  • Doctor

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Published Papers & Misc 【 display / non-display 】

  1. Arakawa I, Kuroki N, Takahashi H, Okada T. Association of Self-Rated Attribution of Blame for Criminal Acts and of Psychiatric Symptoms Among Patients Undergoing Specialist Forensic Psychiatric Treatment in Japan. Criminal behaviour and mental health : CBMH. 2025.02; ( PubMed, DOI )

  2. Kumiko Ando, Kanako Nakazawa, Shota Matsunaga, Takayuki Okada. Overview of forensic outpatients on the Medical Treatment and Supervision Act in Japan. Int J Law Psychiatry. 2025; 100 102074. ( PubMed, DOI )

  3. Sasaki Y, Hakosima Y, Inazaki K, Mizumoto Y, Okada T, Mikami K, Tsujii N, Usami M. Clinical characteristics of child and adolescent psychiatric outpatients engaging in fireplay or arson: a case-control study. Child and adolescent psychiatry and mental health. 2023.10; 17 (1): 119. ( PubMed, DOI )

  4. Ikuko Arakawa, Yosuke Sekiguchi, Koji Takeda, Kazumi Watanabe, Noriomi Kuroki, Toshiaki Kono, Hidetoshi Kinoshita, Takako Enokida, Takao Suzuk, Hidehiko Takahashi, Takayuki Okada. Assessing attribution in the criminal behavior of mentally disordered offenders: Developing a Japanese version of the Gudjonsson Blame Attribution Inventory-Revised Psychiatry and Clinical Neurosciences Reports. 2023.08; 2 (3): e134. ( PubMed, DOI )

  5. Okamura M, Okada T, Okumura Y. Recidivism among prisoners with severe mental disorders. Heliyon. 2023.06; 9 (6): e17007. ( PubMed, DOI )

  6. Sasaki Y, Sasaki S, Sunakawa H, Toguchi Y, Tanese S, Saito K, Shinohara R, Kurokouchi T, Sugimoto K, Itagaki K, Yoshida Y, Namekata S, Takahashi M, Harada I, Hakosima Y, Inazaki K, Yoshimura Y, Mizumoto Y, Okada T, Usami M. Evaluating the daily life of child and adolescent psychiatric outpatients during temporary school closure over COVID-19 pandemic: A single-center case-control study in Japan. Global health & medicine. 2022.06; 4 (3): 159-165. ( PubMed, DOI )

  7. Sasaki Y, Usami M, Sasaki S, Sunakawa H, Toguchi Y, Tanese S, Saito K, Shinohara R, Kurokouchi T, Sugimoto K, Hakoshima Y, Inazaki K, Yoshimura Y, Mizumoto Y, Okada T. Case-control study on clinical characteristics of child and adolescent psychiatric outpatients with child-to-parent violence. BMJ open. 2021.12; 11 (12): e048222. ( PubMed, DOI )

  8. Sekiguchi Y, Okada T, Okumura Y. Treatment Response Distinguishes Persistent Type of Methamphetamine Psychosis From Schizophrenia Spectrum Disorder Among Inmates at Japanese Medical Prison. Frontiers in psychiatry. 2021.07; 12 629315. ( PubMed, DOI )

  9. Kinoshita H, Kuroki N, Okada T. Violent Behavior Prior to Admission Is Not a Factor in Further Prolonged Length of Stay: A Retrospective Cohort Study in a Japanese Psychiatric Hospital. Frontiers in psychiatry. 2021.07; 12 600456. ( PubMed, DOI )

  10. Sasaki Y, Tsujii N, Sasaki S, Sunakawa H, Toguchi Y, Tanase S, Saito K, Shinohara R, Kurokouchi T, Sugimoto K, Itagaki K, Yoshida Y, Namekata S, Takahashi M, Harada I, Hakosima Y, Inazaki K, Yoshimura Y, Mizumoto Y, Okada T, Usami M. Current use of attention-deficit hyperactivity disorder (ADHD) medications and clinical characteristics of child and adolescent psychiatric outpatients prescribed multiple ADHD medications in Japan. PloS one. 2021.06; 16 (6): e0252420. ( PubMed, DOI )

  11. Takeda K, Yamashita S, Taniguchi G, Kuramochi I, Murakami M, Kashiwagi H, Hashimoto R, Hirabayashi N, Okada T. Criminal victimization of people with epilepsy: Sixteen criminal judgments in Japan between 1990 and 2019. Epilepsy & behavior : E&B. 2021.03; 118 107912. ( PubMed, DOI )

  12. Matsumoto Y, Fujino J, Shiwaku H, Miyajima M, Doi S, Hirai N, Jitoku D, Takagi S, Tamura T, Maruo T, Shidei Y, Kobayashi N, Ichihashi M, Noguchi S, Oohashi K, Takeuchi T, Sugihara G, Okada T, Fujiwara T, Takahashi H. Factors affecting mental illness and social stress in hospital workers treating COVID-19: Paradoxical distress during pandemic era. Journal of psychiatric research. 2021.03; 137 298-302. ( PubMed, DOI )

  13. Shiwaku H, Doi S, Miyajima M, Matsumoto Y, Fujino J, Hirai N, Jitoku D, Takagi S, Tamura T, Maruo T, Shidei Y, Kobayashi N, Ichihashi M, Noguchi S, Oohashi K, Takeuchi T, Sugihara G, Okada T, Fujiwara T, Takahashi H. Novel brief screening scale, Tokyo Metropolitan Distress Scale for Pandemic (TMDP), for assessing mental and social stress of medical personnel in COVID-19 pandemic. Psychiatry and clinical neurosciences. 2020.11; 75 (1): 24-25. ( PubMed, DOI )

  14. Sasaki Y, Yagihashi T, Kasahara M, Usami M, Kono T, Okada T. Clinical implications of a history of stealing on psychiatric disorders in children and adolescents. PloS one. 2020.08; 15 (8): e0237906. ( PubMed, DOI )

  15. Takeda K, Sugawara N, Yamada Y, Nagata T, Kashiwagi H, Kono T, Hirabayashi N, Okada T. Employment-Related Factors of Forensic Psychiatric Outpatients with Psychotic Disorders. Neuropsychiatric disease and treatment. 2019.12; 15 3341-3350. ( PubMed, DOI )

  16. Koji Takeda, Norio Sugawara, Taro Matsuda, Akihiro Shimada, Takako Nagata, Hiroko Kashiwagi, Naotsugu Hirabayashi, Takayuki Okada. Mortality and suicide rates in patients discharged from forensic psychiatric wards in Japan Comprehensive Psychiatry. 2019.11; 95 152131. ( PubMed, DOI )

  17. Ando K, Soshi T, Nakazawa K, Noda T, Okada T. Risk Factors for Problematic Behaviors among Forensic Outpatients under the Medical Treatment and Supervision Act in Japan. Frontiers in Psychiatry. 2016.08; 7 144. ( PubMed, DOI )

  18. Soshi T, Noda T, Ando K, Nakazawa K, Tsumura H, Okada T. Neurophysiological modulation of rapid emotional face processing is associated with impulsivity traits. BMC Neuroscience. 2015.12; 16 (1): 87. ( PubMed, DOI )

  19. Soshi T, Noda T, Ando K, Nakazawa K, Tsumura H, Okada T. Impulsivity is Associated with Early Sensory Inhibition in Neurophysiological Processing of Affective Sounds. Frontiers in Psychiatry. 2015.10; 6 141. ( PubMed, DOI )

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Books etc 【 display / non-display 】

  1. Takayuki Okada, Alan Felthous (Editor), Henning Sass (Editor). The Wiley International Handbook on Psychopathic Disorders and the Law, 2nd Edition. 2021.02 The Forensic Mental Health System and Psychopaths in Japan. (ISBN : 978-1-119-15928-5)

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Conference Activities & Talks 【 display / non-display 】

  1. Koji Takeda, Takako Nagata, Norio Sugawara, Taro Matsuda, Akihiro Shimada, Takayuki Okada, Naotsugu Hirabayashi. Recidivism and suicide rate of patients discharged from forensic psychiatric wards in Jap. Annual Meeting of the International Association of Forensic Mental Health Services 2018.06.13 ANTWERP, BELGIUM

  2. Okada T. Social Safety Nets - Crime Prevention, Correction and Victim Protection of Random Killing Spree cases. 2016 Judicial Protection and Crime Prevention Forum: Strengthen Cooperation and Future Challenges 2016.12.16 Tapiei, Taiwan (Hsinchuang United Office Building, Exective Yuan)

  3. Okada T. Indiscriminate Mass Murders in Japan. The 17th Pacific Rim College of Psychiatrists (PRCP) Scientific Meeting 2016.11.03 Kaohsiung, Taiwan (Kaohsiung Exhibition Center)

  4. Watanabe K，Ono S，Wachi T，Yokota K，Otsuka Y，Hirama K，Ando K，Okada T. Preliminary development and validity assessment of a culture-free version of the NRIPS and NCNP’s Forensic Ability Screening Test(N2-FAST). The 31st International Congress of Psychology (ICP2016) 2016.07.24 Yokohama, Kanagawa (PACIFICO Yokohama)

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Awards & Honors 【 display / non-display 】

  • The Japanese Association of Criminology Award，The Japanese Association of Criminology，2020.11

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Others 【 display / non-display 】

  • The 57th Annual Conference of the Japanese Association of Criminology，2020.11

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Social Contribution 【 display / non-display 】

  • Forensic Mental Health System in Japan，2016.12.17

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