The comprehensive cohort study of the relationship between life style activities and cognitive functions in the middle aged and the elderly

• Project/Area Number: 25380884
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Educational psychology
• Research Institution: Wakayama Medical University
• Principal Investigator: Iwahara Akihiko 和歌山県立医科大学, 保健看護学部, 准教授 (30353014)
• Co-Investigator(Kenkyū-buntansha): Hamajima Nobuyuki 名古屋大学, 医学系研究科, 教授 (30172969) ; Hatta Takeshi 関西福祉科学大学, 健康福祉学部, 教授 (80030469)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 認知機能 / 認知の予備力 / 認知症予防 / ライフスタイル / 動脈硬化 / 高齢者 / 認知加齢 / 知的活動 / 血圧管理

Outline of Final Research Achievements

There is epidemiological evidence that lifestyle characterized by engagement in leisure activities of intellectual and social nature is associated with slower cognitive decline in healthy elderly. In the present study we investigate whether the use of information technology itself or motivation for the acquisition of new skills contributes to cognitive reserve. The results suggest that not motivation but the adoption of new technology contributes to slower decline of cognitive functions.
Several studies show that hypertension in midlife is also related to cognitive impairment in old age. In this study, we examined this association in the sexagenarian and the septuagenarian separately to test our hypothesis that different risk factors were related to cognitive decline in each generation respectively. Our findings suggest that high blood pressure in the past decade is risk factor for cognitive decline in the sexagenarian but is not risk factor in the septuagenarian.

Research Products

• [Journal Article] 高齢者の認知発達における情報処理速度と実行系機能について―八雲研究縦断データによる検討報告― (2015)
  • Author(s): 八田武志，堀田千絵，岩原昭彦，加藤公子，八田武俊，八田純子，伊藤恵美，永原直子，藤原和美，浜島信之
  • Journal Title: 人間環境学研究 Volume: 12 Pages: 1-6
  • NAID: 130005117608
  • Peer Reviewed
• [Journal Article] 中高年者における高次脳機能、信頼観と騙されやすさの関連 (2015)
  • Author(s): 八田武俊，八田武志，岩原昭彦，八田純子，永原直子，伊藤恵美，藤原和美，堀田千絵
  • Journal Title: 心理学研究 Volume: 85 Pages: 540-548
  • Peer Reviewed
• [Journal Article] Developmental trajectories of verbal and visuospatial abilities in healthy older adults: comparison of the hemisphere asymmetry reduction in older adults model and the right hemi-ageing model (2015)
  • Author(s): Hatta T, Iwahara A, Hatta T, Ito E, Hatta J, Hotta C, Nagahara N, Fujiwara K, Hamajima N
  • Journal Title: Laterality Volume: 20 Pages: 69-81
  • Peer Reviewed
• [Journal Article] 前頭葉関連機能と姿勢維持機能との関連―中高年以降の加齢変化および性差の検討― (2014)
  • Author(s): 八田武志，岩原昭彦，八田武俊，伊藤恵美，八田純子，永原直子，藤原和美，堀田千絵，浜島信之
  • Journal Title: 人間環境学研究 Volume: 12 Pages: 1-6
  • NAID: 130004726222
  • Peer Reviewed
• [Journal Article] Easy detecting signal of cognitive decline in healthy community-dwelling elderly people (2013)
  • Author(s): Takeshi Hatta, Taketoshi Hatta, Chie Hotta, Emi Ito, Akihiko Iwahara, Naoko Nagahara,
  • Journal Title: Health Volume: 5-12 Pages: 19-23
  • Peer Reviewed
• [Journal Article] Younger and older adults with high cognitive function can lead to positive bias in future imagination: Compared to near and far future (2013)
  • Author(s): Chie Hotta, Emi Ito, Naoko Nagahara, Akihiko Iwahara, Takeshi Hatta
  • Journal Title: Jornal of Human Environmental Studies Volume: 11-1 Pages: 51-58
  • Peer Reviewed
• [Presentation] 中高齢者の高次脳機能と生理機能との関連(1) －匂いの識別能力と高次脳機能との関連性－ (2015)
  • Author(s): 岩原昭彦，永原直子，伊藤恵美，堀田千絵，八田武俊，八田純子，加藤公子，八田武志
  • Organizer: 本心理学会第79回大会
  • Place of Presentation: 愛知県名古屋市
  • Year and Date: 2015-09-23
• [Presentation] 笑い・ユーモアが高次脳機能に及ぼす影響 (2015)
  • Author(s): 岩原昭彦
  • Organizer: 第28回日本健康心理学会
  • Place of Presentation: 東京都町田市
  • Year and Date: 2015-09-05
• [Presentation] Not Motivational Reserve but Cognitive Reserve Acts as a Buffer of Cognitive Decline (2015)
  • Author(s): Iwahara A, Hatta
  • Organizer: INS Mid-Year Meeting 2015
  • Place of Presentation: Sydney, Australia
  • Year and Date: 2015-07-03
  • Int'l Joint Research
• [Presentation] 起立性低血圧は認知機能を低下させる場合と向上させる場合とがある (2014)
  • Author(s): 岩原昭彦，高橋真麻，宮井信行，有田幹雄
  • Organizer: 第37回高血圧学会
  • Place of Presentation: 横浜市
  • Year and Date: 2014-10-18
• [Presentation] 岩原昭彦，永原直子，伊藤恵美，八田武志：中高齢者の高次脳機能と生活習慣(6) －動機づけの予備力が高次脳機能に与える影響－ (2014)
  • Author(s): 岩原昭彦，永原直子，伊藤恵美，八田武志
  • Organizer: 日本心理学会第78回大会
  • Place of Presentation: 京都市
  • Year and Date: 2014-09-11
• [Presentation] Better control of blood pressure in midlife was associated with cognitive function in old age: The Minabe Study in Japan (2014)
  • Author(s): Iwahara A, Uematsu U, Shiba, Miyai N, Arita M
  • Organizer: INS Mid-Year Meeting
  • Place of Presentation: Jerusalem, Israel
  • Year and Date: 2014-07-10
• [Presentation] Intimal Medial Thickness and Cognition in Middle Aged and Older Adults Without Clinical Vascular Disease: Evidence from Minabe Study in Japan (2013)
  • Author(s): Iwahara A,, Hatta T, Uematsu U, Shiba M, Hattori, S, Buyo M, Arita M
  • Organizer: INS Annual Meeting
  • Place of Presentation: Amsterdam, The Netherlamds
• [Presentation] Better control of blood pressure in midlife was associated with cognitive function in old age: The Minabe Study in Japan (2013)
  • Author(s): Iwahara A, Uematsu U, Shiba, Miyai N, Arita M
  • Organizer: HBPR
  • Place of Presentation: New Orleans, USA
• [Presentation] 壮年期の血圧の管理が高齢期の認知機能と関連する (2013)
  • Author(s): 岩原昭彦，宮井信行，服部園美，武用百子，内海みよ子，有田幹雄
  • Organizer: 第36回高血圧学会
  • Place of Presentation: 大阪国際会議場
• [Presentation] 中高齢者の高次脳機能と生活習慣(5) －チャレンジ精神が高次脳機能に与える影響－ (2013)
  • Author(s): 岩原昭彦，永原直子，伊藤恵美，八田武志
  • Organizer: 日本心理学会第77回大会
  • Place of Presentation: 札幌国際会議場