Last Updated :2026/05/19
Researcher Information
Career
Educational Background
- Apr. 2017 - Mar. 2020, International University of Health and Welfare, Graduate School of Health and Welfare Sciences, Doctor's Program in Health Sciences
- Apr. 2014 - Mar. 2016, International University of Health and Welfare, Graduate School of Health and Welfare Sciences, Master's Program in Health Sciences
- Apr. 2005 - Mar. 2009, International University of Health and Welfare, 保健医療学部, Department of Occupational Therapy
Research activity information
Award
Paper
- Jumping to conclusions and social behavior in individuals diagnosed with schizophrenia.
Ryota Hayashi; Yuichiro Takahama; Hiroyuki Inadomi; Ryouhei Ishii; Seiichi Watanabe; Kazuki Yoshida; Hiroki Okada; Masafumi Yoshimura
Schizophrenia research. Cognition, Jun. 2026, [Reviewed] - Characteristics of Eye Movements and Correlation to Cognitive Functions in Relation to the Location of Guide Signs and Driving Speed.
Takaya Maeyama; Hiroki Okada; Daisuke Sawamura
Journal of eye movement research, Mar. 2026, [Reviewed]
Corresponding - The impact of social and solitary activities on loneliness in older rural male adults: A path analysis study.
Shan Yun; Hiroki Okada; Yuri Matsuzaki; Maki Miyajima; Risa Takashima
The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association, Jan. 2026, [Reviewed] - Sequential Fixation Behavior in Road Marking Recognition: Implications for Design.
Takaya Maeyama; Hiroki Okada; Daisuke Sawamura
Journal of eye movement research, Oct. 2025, [Reviewed]
Corresponding - A pilot study on the possibility of improving driving skills in stable people with schizophrenia: A comparison of short-term learning effects among inexperienced drivers.
Hiroki Okada
Journal of psychiatric research, Oct. 2025, [Reviewed]
Lead - Characteristics of real-world driving behavior in people with schizophrenia: a naturalistic study utilizing drive recorders.
Hiroki Okada; Saki Komagata; Mayu Takagi; Yuichi Kamata; Junichi Matsumoto; Takaya Maeyama; Yukiko Takashio; Masaki Matoba
Schizophrenia (NPJ Schizophrenia), Apr. 2025, [Reviewed]
Lead - Loneliness and social participation among older Japanese adults: The influence of gender on social participation
Yuri Matsuzaki; Risa Takashima; Hiroki Okada; Maki Miyajima
PLOS ONE, 2025, [Reviewed] - Characteristics of Older Adults Experiencing High Loneliness Despite Active Social Participation: A Cross-Sectional Study.
Yuri Matsuzaki; Hiroki Okada; Maki Miyajima; Rika Hirayama; Risa Takashima
Inquiry : a journal of medical care organization, provision and financing, 2025, [Reviewed] - Identifying determinants of physical activity in older patients with musculoskeletal disorders undergoing rehabilitation: Comparison of two distinct models using structural equation modeling.
Masashi Kanai; Kazuki Yoshida; Hiroki Okada; Takuro Ohtsubo; Katsuhiro Ueno; Masafumi Nozoe
Geriatrics & gerontology international, Dec. 2024, [Reviewed] - Exploratory` study on driving ability of people with schizophrenia: Relationships among cognitive function, symptoms, and brain activity
Hiroki Okada; Takafumi Morimoto; Nozomu Ikeda
Schizophrenia Research, Feb. 2024, [Reviewed]
Lead - The effects of rehabilitative interventions on reading disorders caused by homonymous visual field defects: a meta-analysis focusing on improvement in reading speed.
Takaya Maeyama; Hiroki Okada; Shinya Sakai
Acta neurologica Belgica, Aug. 2023, [Reviewed]
Corresponding - Prefrontal activation during simulated driving in people with schizophrenia: A functional near-infrared spectroscopy study.
Hiroki Okada; Daisuke Sawamura; Koji Kunita; Hiroto Ogasawara; Kentaro Maeda; Takafumi Morimoto; Nozomu Ikeda
Psychiatry research, Aug. 2023, [Reviewed]
Lead - Identifying subgroups based on self-assessment of ability in patients with schizophrenia and its relationship with vocational outcomes.
Hiroki Okada
Hong Kong journal of occupational therapy : HKJOT, Jun. 2022, [Reviewed]
Lead - Association of negative symptom domains and other clinical characteristics of schizophrenia on long-term hospitalization
Hiroki Okada
INDIAN JOURNAL OF PSYCHIATRY, May 2022, [Reviewed]
Lead - Determinants of Recreational Outcomes in Schizophrenia: An Exploratory Study Focusing on Gender Differences.
Hiroki Okada
Issues in mental health nursing, Apr. 2022
Lead - Driving ability and driving status of a person with schizophrenia - A systematic review based on PubMed and Japan Medical Abstracts-
Hiroki Okada; Shingo Hattori; Risa Ishii Seiichi Watanabe
Japanese Journal of Psychiatric Rehabilitation, Jun. 2021, [Reviewed]
Lead - Single versus dual pathways to functional outcomes in schizophrenia: Role of negative symptoms and cognitive function.
Hiroki Okada; Daisuke Hirano; Takamichi Taniguchi
Schizophrenia research. Cognition, Mar. 2021, [Reviewed]
Lead - Impact of Negative Symptom Domains and Other Clinical Characteristics on Functional Outcomes in Patients with Schizophrenia
Hiroki Okada; Dsisuke Hirano; Takamichi Taniguchi
Schizophrenia Research and Treatment, Feb. 2021, [Reviewed]
Lead - The Impact Negative Symptoms on Social Functioning in Schizophrenia : Modeling the influence of experiential factor and expressive factor on social functioning
岡田 宏基; 平野 大輔; 谷口 敬道
精神医学 = Clinical psychiatry, Oct. 2020, [Reviewed]
Lead - Negative symptoms in schizophrenia: Modeling the role of experience factor and expression factor.
Hiroki Okada; Daisuke Hirano; Takamichi Taniguchi
Asian journal of psychiatry, Oct. 2020, [Reviewed]
Lead - 長期入院統合失調症者の対人関係機能に陰性症状が与える影響 対人関係機能の障害と陰性症状の重症度に関する探索的研究
岡田 宏基; 平野 大輔; 谷口 敬道
作業療法, Aug. 2020, [Reviewed]
Lead - 長期入院統合失調症者の社会機能に陰性症状が与える影響 失快楽症、非社会性、意欲の低下、感情鈍麻、言語の貧困と社会機能との関連
岡田 宏基; 平野 大輔; 谷口 敬道
作業療法, Jun. 2020, [Reviewed]
Lead - 統合失調症の社会機能と陰性症状サブドメインとの関連 MEDLINEおよび医学中央雑誌に基づくシステマティックレビュー
岡田 宏基; 平野 大輔; 谷口 敬道
国際医療福祉大学学会誌, Feb. 2020, [Reviewed]
Lead - Characteristics of negative symptoms and relationship with factors of discharge difficulty in long-term hospitalized person with schizophrenia : Comparison with community dwelling person with schizophrenia
岡田 宏基
精神障害とリハビリテーション = Japanese journal of psychiatric rehabilitation, 2020, [Reviewed]
Lead
MISC
- 案内標識の位置と運転速度に着目した視線運動の特徴と認知機能との相関
前山 昂弥; 岡田 宏基
高次脳機能研究, Mar. 2025 - 同名性視野障害で生じた読字障害に対するリハビリ的介入の効果 システマティックレビューとメタアナリシス
前山 昂弥; 岡田 宏基
高次脳機能研究, Mar. 2024 - 回復期リハビリテーション病棟におけるBPSD発生頻度の調査~運動器疾患を対象とした検証~
片桐一敏; 曽我部和則; 松森允昭; 高見豪俊; 小笠原浩之; 中内勇介; 岡田宏基
リハビリテーション・ケア合同研究大会, 2024 - Changes over time in BPSD and rehabilitation effectiveness at the convalescent rehabilitation ward
曽我部和則; 片桐一敏; 岡田宏基; 生駒一憲
日本作業療法学会抄録集(CD-ROM), 2024 - 孤立と孤独感の乖離が生じている高齢者の臨床的特徴
松崎 由莉; 高島 理沙; 宮島 真貴; 岡田 宏基
日本作業療法学会抄録集, Nov. 2023 - 統合失調症患者における機能障害自己評価と否定的自己信念(Functional disability self-assessment and negative self-beliefs in people with schizophrenia)
Okada Hiroki
日本作業療法学会抄録集, Sep. 2022 - 統合失調症者における自動車運転の現状および運転能力 PubMedおよび医学中央雑誌によるシステマティックレビュー
岡田 宏基; 服部 真吾; 古屋 里沙
日本作業療法学会抄録集, Sep. 2021 - 長期入院統合失調症者の否定的な自己認知に対する集団作業療法プログラムの効果 個別作業療法との比較・検討
岡田 宏基; 廣 志穂
日本作業療法学会抄録集, Sep. 2018 - 当院におけるSSTプログラムの工夫とその実践について 主観的適応感に着目して
岡田 宏基
日本作業療法学会抄録集, Sep. 2016 - 精神科作業療法における認知行動療法的関わり 活動への介入で認知が変容した症例を通して
岡田 宏基
日本作業療法学会抄録集, Jun. 2014 - 当院における精神科外来作業療法・訪問看護との連携 状況依存性幻聴をもつ症例に対する関わりを通して
岡田 宏基; 高塩 幸子
日本作業療法学会抄録集, Jun. 2012
Books and other publications
- 精神障害作業療法学 = Occupational therapy for mental disorders
早坂, 友成; 稲富, 宏之; 稲垣, 成昭; 照井, 林陽; 金子, 史子; 谷村, 厚子; 泊り, 由希子; 宮島, 真貴; 村上, 元; 清家, 庸佑; 上杉, 文都; 足立, 一; 林, 良太; 山下, 高介; 高橋, 章郎; 平澤, 勉; 小川, 泰弘; 羽川, 孝幸; 池谷, 政直; 森川, 孝子; 胡, 友恵; 岡田, 宏基; 古賀, 誠; 森元, 隆文
医歯薬出版, Feb. 2025
9784263267233
Lectures, oral presentations, etc.
Affiliated academic society
Research Themes
Social Contribution Activities
Media Coverage
- 統合失調症患者の運転、慎重で違反少ない ドラレコで実証、患者ごとにリスク判断を
産経新聞, https://www.sankei.com/article/20250628-KXNSZREVE5PUHP6NPRA3ADTSOE/, Jun. 2025, Paper - 統合失調症患者は安全運転の傾向～北大・岡田助教ら研究グループ～
北海道医療新聞, 4面, Jun. 2025, Paper - 実データで見る統合失調症者の運転スタイル～偏見なき運転評価と支援の実現に向けて～
北海道大学, 北海道大学プレスリリース（研究発表）, https://www.hokudai.ac.jp/news/2025/05/post-1886.html, May 2025
