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Pupillometory of glare perception - a medical diagnostic aid based on cognitive neuroscience and its application to visual environment assessment

Research Project

Project/Area Number 20K20313
Project/Area Number (Other) 17H06292 (2017-2019)
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund (2020)
Single-year Grants (2017-2019)
Research Field Human informatics and related fields
Research InstitutionToyohashi University of Technology

Principal Investigator

Nakauchi Shigeki  豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (00252320)

Co-Investigator(Kenkyū-buntansha) 南 哲人  豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (70415842)
東 広志  京都大学, 情報学研究科, 助教 (70734474)
Project Period (FY) 2017-06-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2017: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywordsグレア錯視 / 明るさ知覚 / 瞳孔反応 / 時間知覚 / グレア / SSVEP / 光感受性障害 / 脳波 / 瞳孔 / 他覚的計測
Outline of Research at the Start

輝度が中央部に向かって明るくなるようなグラデーション刺激で囲まれた場所は、物理的には等輝度であっても周りよりも明るく、条件によっては発光しているように感じられる。本研究課題はグレア錯視に関連する視覚メカニズムについて心理物理実験と生理反応(瞳孔反応および脳波)を組み合わせたアプローチにより明らかにしようとするものである。瞳孔は眼への入射光量のみならず、主観的な明るさを反映し、グレア錯視に対しても大きな縮瞳を示すことが知られているが、本研究課題ではさらに、その反応が色によって異なることを示した。特に青グレアの場合に瞳孔反応も、また主観的な明るさもその効果が大きいことを発見した。

Outline of Final Research Achievements

This study have focused on the glare illusion and have attempted to quantify various subjective quantities through the relationship between subjective brightness and pupillary responses. So far, we have investigated 1) the measurement of pupillary responses to glare and control stimuli, 2) the measurement of pupillary responses and subjective brightness to differently colored equal-intensity glare stimuli, and 3) the relationship between subjective brightness, time perception, and associated pupillary responses. The results indicate that pupils reflect the subjective brightness rather than the physical luminance of the stimuli, and that the pupil response is a useful cue to measure the subjective quantity quantitatively.

Academic Significance and Societal Importance of the Research Achievements

瞳孔系は明るさ知覚に限らず、様々な主観的知覚の程度や質を反映することが期待される。したがって、これまで自己申告やアンケートに依存していた主観量をより他覚的に把握する一方法として瞳孔計測は有用であり、光感受性障害など純粋に主観量にのみ症状が現れる場合の客観的判断の足掛かりとなるほか、視覚的デザインの効果や誘目性などの客観評価への展開も期待できる。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (11 results)

All 2021 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (4 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] University of Oslo(ノルウェー)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] オスロ大学(ノルウェー)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Effect of glare illusion-induced perceptual brightness on temporal perception2021

    • Author(s)
      Yuya Kinzuka, Fumiaki Sato, Tetsuto Minami, Shigeki Nakauchi
    • Journal Title

      Psychophysiology

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pupil Constriction in the Glare Illusion Modulates the Steady-State Visual Evoked Potentials2019

    • Author(s)
      [Yuta Suzuki,Tetsuto Minami,Shigeki Nakauchi]
    • Journal Title

      Neuroscience

      Volume: 416 Pages: 221-228

    • DOI

      10.1016/j.neuroscience.2019.08.003

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Colorful glares: Effects of colors on brightness illusions measured with pupillometry2019

    • Author(s)
      [Yuta Suzuki,Tetsuto Minami,B. Laeng,Shigeki Nakauchi]
    • Journal Title

      Acta Psychologica

      Volume: 198 Pages: 102882-102882

    • DOI

      10.1016/j.actpsy.2019.102882

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association between pupil dilation and implicit processing prior to object recognition via insight.2018

    • Author(s)
      Suzuki Y, Minami T, Nakauchi S
    • Journal Title

      Scientific reports

      Volume: 8 Issue: 1 Pages: 6874-6874

    • DOI

      10.1038/s41598-018-25207-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Window to the mind: pupilometry as a tool to understand human cognition2021

    • Author(s)
      Shigeki Nakauchi
    • Organizer
      All Alumni Club Meeting (JSPS Stockholm Office)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of color-vision deficiency test based on pupil oscillations2019

    • Author(s)
      Suzuki Y, Onodera K, Minami T, Nakauchi S
    • Organizer
      42nd European Conference on Visual Perception (ECVP2019, Leuven, Belgium)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The differential effect of glowing appearance in the glare illusion: evidence from pupillometry2018

    • Author(s)
      Y. Suzuki, T. Minami, S. Nakauchi
    • Organizer
      Vision Sciences Society 2018 Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pupil dilation reveals the implicit prior processing of the insight to the hidden image2017

    • Author(s)
      Suzuki,Y., Minami, T., Nakauchi, S.
    • Organizer
      Vision Sciences Society 17th Annual Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] グレア知覚検査装置及びグレア知覚検査方法2019

    • Inventor(s)
      廣瀬 秀顕, 中内 茂樹, 田中 芳樹
    • Industrial Property Rights Holder
      廣瀬 秀顕, 中内 茂樹, 田中 芳樹
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2018 Annual Research Report

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Published: 2017-07-21   Modified: 2024-03-26  

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