Elucidation of Executive Function in Individuals with Intellectual Disabilities

• Project/Area Number: 16K21049
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Experimental psychology; Special needs education
• Research Institution: Joetsu University of Education
• Principal Investigator: Ikeda Yoshifumi 上越教育大学, 大学院学校教育研究科, 准教授 (20733405)
• Research Collaborator: OKUZUMI Hideyuki ; KOKUBUN Mitsuru ; HAISHI Koichi ; OBA Shigeji ; YASHIMA Takeshi
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
• Keywords: 実行機能 / 抑制 / ワーキングメモリ / ストループ / 知的障害 / 発達障害 / 認知 / 前頭前野 / 実験系心理学 / 特別支援教育

Outline of Final Research Achievements

This study aimed to elucidate features of inhibitory control, one key aspect of executive functions , in people with intellectual disabilities. Specifically, this study investigated how interference occurs in inhibition tasks, how interference is controlled, and how inhibitory control relates to adaptive behaviors. The results suggested the followings: task conflict causes significant interference; interference occurs largely in the condition which requires proactive control; and weak proactive control is related to maladaptive behaviors.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果から、実行機能を知的障害の診断軸である知的能力と適応行動を媒介する要因として捉え、人間の活動を総合的に捉える視座を形成するエビデンスの一つが得られた。また、本研究を通して、知的障害者が示す抑制障害が適応行動の制約の背景の一つであることが示唆された。これらの知見は、知的障害者の行動問題に対する支援方法を考案する上で貴重なエビデンスとなるものである。

Research Products

• [Int'l Joint Research] パドヴァ大学(イタリア)
• [Journal Article] 特別な教育的ニーズのある子どもの実行機能：母国語や貧困等の問題との関連 (2019)
  • Author(s): 池田吉史
  • Journal Title: 上越教育大学特別支援教育実践研究センター紀要 Volume: 25 Pages: 1-5
  • NAID: 120006653331
  • Open Access
• [Journal Article] 入院児童の教育を支える多職種連携・協働の成果と課題－医療・教育・保育の連携を基盤に－ (2019)
  • Author(s): 田中亮・奥住秀之・池田吉史
  • Journal Title: 上越教育大学特別支援教育実践研究センター紀要 Volume: 25 Pages: 37-42
  • NAID: 120006653337
  • Open Access
• [Journal Article] 知的障害児・者における行動・認知の社会的側面と課題遂行支援 (2019)
  • Author(s): 葉石光一・池田吉史・大庭重治
  • Journal Title: 上越教育大学特別支援教育実践研究センター紀要 Volume: 25 Pages: 47-52
  • NAID: 120006653339
  • Open Access
• [Journal Article] Heightened Attention Demand of the Walking Cancellation Task and Its Relation to ADHD Tendency in Young Adults (2018)
  • Author(s): Saito, R., Ikeda, Y., Okuzumi, H., & Kokubun, M.
  • Journal Title: Journal of Special Education Research Volume: 6 Issue: 2 Pages: 81-89
  • DOI: 10.6033/specialeducation.6.81
  • NAID: 130007474542
  • ISSN: 2187-5014, 2188-4838
  • Year and Date: 2018-02-28
  • Peer Reviewed
• [Journal Article] 知的障害特別支援学校高等部生徒におけるキャリア教育の「基礎的・汎用的能力」に関する自己理解・評価 (2018)
  • Author(s): 斎藤遼太郎・池田吉史・奥住秀之・國分充
  • Journal Title: 発達障害研究 Volume: 40 Pages: 374-380
  • NAID: 40021807146
  • Peer Reviewed
• [Journal Article] 知的障害者における持続的注意と抑制制御 (2017)
  • Author(s): 葉石光一, 池田吉史, 大庭重治, 奥住秀之, 勝二博亮, 岡崎慎治, 八島猛
  • Journal Title: 埼玉大学紀要教育学部 Volume: 66 Pages: 129-135
  • NAID: 120006389419
• [Journal Article] 発達障害及び知的障害の実行機能と脳病理 (2016)
  • Author(s): 池田吉史
  • Journal Title: Journal of Inclusive Education Volume: 1 Pages: 132-139
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Working memory and executive functions in individuals with intellectual disabilities (2018)
  • Author(s): Passolunghi, M. C. (Organizer)
  • Organizer: Symposium presented at the 12th European Conference on Psychological Theory and Research on Intellectual and Developmental Disabilities
  • Int'l Joint Research
• [Presentation] Inhibitory control and sustained attention in persons with intellectual disabilities (2018)
  • Author(s): Haishi, K., Oba, S., & Ikeda, Y.
  • Organizer: The 126th annual meeting of the American Psychological Association
  • Int'l Joint Research
• [Presentation] 特別支援教育における発達障害への実験的接近（５）―発達における身体の役割― (2018)
  • Author(s): 平田正吾・北洋輔・池田吉史・浅川淳司・奥村安寿子・蒔苗詩歌・室橋春光
  • Organizer: 日本特殊教育学会第56回大会
• [Presentation] 特別な教育的ニーズのある児童を含む小集団学習場面における意見集約型課題の活用 (2018)
  • Author(s): 石田脩介・池田吉史・大庭重治
  • Organizer: 日本LD学会第27回大会
• [Presentation] 知的障害者の実行機能特性に基づいた作業活動の生産性を高める支援方法 (2018)
  • Author(s): 山下拓也・佐脇由佳子・池田吉史
  • Organizer: 日本特殊教育学会第56回大会
• [Presentation] 発達障害者の身体運動に対する注意の内部・外部焦点化の影響 (2018)
  • Author(s): 高井透・池田吉史
  • Organizer: 日本特殊教育学会第56回大会
• [Presentation] Association of ADHD symptoms with Stroop-like interference in the animal size tests (2017)
  • Author(s): Ikeda, Y., Haishi, K., Oba, S., Yashima, T., & Okuzumi, H.
  • Organizer: The 20th conference of the European Society for Cognitive Psychology
  • Int'l Joint Research
• [Presentation] Stroop & Reverse-Stroop interference as cognitive control: The possible underlying mechanisms and applied perspectives (2016)
  • Author(s): Ikeda, Y.
  • Organizer: The 31st International Congress of Psychology
  • Place of Presentation: Yokohama, Japan
  • Int'l Joint Research
• [Presentation] Stroop/reverse-Stroop interference in children with autism spectrum disorders: A preliminary study. (2016)
  • Author(s): Ikeda, Y., Oba, S., Okuzumi, H., Kokubun, M., & Haishi, K.
  • Organizer: The 124th annual meeting of the American Psychological Association
  • Place of Presentation: Denver, Colorado, USA
  • Int'l Joint Research
• [Presentation] Sustained attention and inhibitory control in persons with intellectual disabilities. (2016)
  • Author(s): Haishi, K., Ikeda, Y., Oba, S., & Okuzumi, H.
  • Organizer: The 31st International Congress of Psychology
  • Place of Presentation: Yokohama, Japan
  • Int'l Joint Research
• [Presentation] Task performance support for people with intellectual disabilities based on executive functions (2016)
  • Author(s): Oba, S., Ikeda, Y., & Haishi, K.
  • Organizer: The 31st International Congress of Psychology
  • Place of Presentation: Yokohama, Japan
  • Int'l Joint Research
• [Book] 自己制御の発達と支援 (2018)
  • Author(s): 森口佑介（編著）・本郷一夫（監修）
  • Total Pages: 120
  • Publisher: 金子書房
  • ISBN: 9784760895748
• [Book] わかりやすく学べる特別支援教育と障害児の心理・行動特性 (2018)
  • Author(s): 河合康・小宮三彌（編著）
  • Total Pages: 224
  • Publisher: 北樹出版
  • ISBN: 9784779305610
• [Book] よくわかる特別支援教育［第２版］ (2018)
  • Author(s): 湯浅恭正（編著）
  • Total Pages: 232
  • Publisher: ミネルヴァ書房
  • ISBN: 9784623081257
• [Remarks] 上越教育大学特別支援教育コース池田研究室
  • URL: http://www.juen.ac.jp/lab/yosifumi/