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Elucidation of the mechanism of stereopsis insufficiency and mental and physical fatigue caused by near vision and development of recovery methods for them

Research Project

Project/Area Number 18K12149
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90150:Medical assistive technology-related
Research InstitutionOkayama University

Principal Investigator

TAKAHASHI Satoshi  岡山大学, ヘルスシステム統合科学学域, 准教授 (20236277)

Co-Investigator(Kenkyū-buntansha) 金澤 右  川崎医科大学, 医学部, 教授 (20243511)
呉 景龍  岡山大学, ヘルスシステム統合科学学域, 教授 (30294648)
楊 家家  岡山大学, ヘルスシステム統合科学学域, 助教 (30601588)
呉 瓊  岡山大学, ヘルスシステム統合科学研究科, 客員研究員 (40762935)
濱崎 一郎  岡山大学, 大学病院, 講師 (50600532)
江島 義道  岡山大学, 自然科学研究科, 客員教授 (60026143)
早見 武人  北九州市立大学, 国際環境工学部, 准教授 (60364113)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords両眼立体視 / 立体視不全 / VDT / 近業作業 / 運動協応 / 回復 / 単眼立体視 / 近見 / 機能回復
Outline of Final Research Achievements

The purpose of this study is to investigate the fact that VDT (Visual Display Terminals) workers and young people without ophthalmologic diseases have difficulty with binocular stereopsis using behavioral and cognitive science methods, and to find a method of functional recovery.
Large-scale testing using the OPUS OF II (Binocular Stereopsis Simplified Test Instrument) revealed that about 60% of young people have incorrect binocular stereopsis. In depth discrimination, it was also found that many subjects who are more susceptible to monocular depth cues are more likely to be incorrect, and some of them will be able to correctly judge depth in repeated experiments. This indicates that it is important to conduct training that is appropriate for each subject.

Academic Significance and Societal Importance of the Research Achievements

急速なIT化によって若年者から高齢者までVDT作業が日常化し、眼精疲労、肉体的・精神的疲労が大きな社会問題になっている。本研究は、視線移動、焦点合わせの両眼協応作業を必要とする両眼立体視の、特に若年者の機能回復を目指し、両眼立体視不全となる原因を解明しようと行ったものである。奥行認知に関係する手掛かりの影響を受けて正しく奥行きが判断できない被験者に対して繰り返し検査を実施することによって回復することが明らかになったことから、適切な回復方法を調査し実施することによって、VDT作業に伴う問題を解決できる可能性があることが分かったことは学術的、社会的に大きな意義がある。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Semantic Congruency Modulates the Effect of Attentional Load on the Audiovisual Integration of Animate Images and Sounds2020

    • Author(s)
      Qingqing Li, Qing Wu, Yiyang Yu, Fengxia Wu, Satoshi Takahashi, Yoshimichi Ejima, Jiajia Yang, Jinglong Wu
    • Journal Title

      i-Perception

      Volume: Vol.11, Issue.6 Issue: 6 Pages: 1-24

    • DOI

      10.1177/2041669520981096

    • NAID

      120006979087

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Visual Orientation Sequence Task enhances Working Memory in Younger and Older Adults2020

    • Author(s)
      Ting Guo, Yanna Ren, Yinghua Yu, Yiyang Yu, Seongyeol Yun, Qiong Wu, Jiajia Yang, Satoshi Takahashi, Yoshimichi Ejima, Jinglong Wu
    • Organizer
      The 2020 IEEE International Conference on Mechatronics and Automation (ICMA2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 視覚・聴覚注意の切り替えにおける加齢効果に関する研究2020

    • Author(s)
      秋 燿俊, 高橋 智, 楊 家家, 呉 瓊, 江島 義道, 呉 景龍
    • Organizer
      日本機械学会中国四国支部 第58期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 両眼立体視判断に与える単眼奥行き手がかりの影響2019

    • Author(s)
      高礒竜之介,高橋智,中川皓夫,濱崎 一郎,楊 家家,呉 瓊,江島 義道,呉 景龍
    • Organizer
      第55回日本眼光学学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 若者に見られる周辺立体視機能低下の分析2018

    • Author(s)
      高礒竜之介,高橋智,中川皓夫,楊家家,呉瓊,江島義道,呉景龍
    • Organizer
      第54回日本眼光学学会総会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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