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Psychophysical research on bodily visual illusions caused by clothing

Research Project

Project/Area Number 18K03175
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 10040:Experimental psychology-related
Research InstitutionOsaka University

Principal Investigator

Morikawa Kazunori  大阪大学, 大学院人間科学研究科, 教授 (70312436)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords服装 / 錯視 / 体型 / ファッション / ストライプ柄 / 水玉模様 / マスク / 顔 / 視覚 / 縞模様 / 知覚 / 着やせ / タックイン / 縦縞 / 視知覚 / 着太り / 脚の長さ / 心理物理学
Outline of Final Research Achievements

Clothes can makes one's body appear slimmer or legs appear longer than they actually are. These visual effects take advantage of visual illusions. We quantitatively and systematically verified and clarified the stimulus conditions that produce body shape illusions by measuring the amount of illusions induced by clothing using psychophysical measurement methods.
Specifically, we measured the body shape illusion effects of tucked-in shirts, skirt length, black and white clothing colors, vertical and horizontal striped clothing, and polka-dot patterned clothing. Furthermore, we also examined the brightness illusion, the face size illusion, the eye size illusion, and the eye tilt illusion caused by wearing face masks.

Academic Significance and Societal Importance of the Research Achievements

服装で体型が実際よりスリムに見えるとか脚が長く見えるという視覚効果は目の錯覚(錯視)を活用している。現代において服装文化が興隆している理由の一つは服装により体型を実際より良く見せることができるからである。これまで服装の視覚効果はファッション業界の「センス」とか主観的経験則でしか語られなかった。服装による見た目の改善法という感性的問題にこの研究は科学的な測定方法と証拠を与え、体型の錯視が生じる刺激条件を定量的・体系的に検証・解明することを可能にした。服装文化の市場規模や社会的関心の高さを考えると、本研究の社会的意義は極めて大きいと言える。事実、本研究は複数のテレビ局・新聞社から取材を受けた。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021 2020 2019 Other

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Book (2 results) Remarks (1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Vertical anisotropy in lightness perception not caused by lighting assumption2023

    • Author(s)
      Kobayashi, Y. & Morikawa, K.
    • Journal Title

      Vision Research

      Volume: 206 Pages: 1-10

    • DOI

      10.1016/j.visres.2023.108193

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Harmony between Hair Color and Gloss and Perceptual Characteristics of ‘Clear’ Hair2021

    • Author(s)
      上條洋士,篠原恵,渕上幾太郎,吉田直史,富田瑛智,森川和則
    • Journal Title

      Journal of Society of Cosmetic Chemists of Japan

      Volume: 55 Issue: 3 Pages: 262-270

    • DOI

      10.5107/sccj.55.262

    • NAID

      130008090849

    • ISSN
      0387-5253, 1884-4146
    • Year and Date
      2021-09-20
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymmetric Brightness Effects With Dark Versus Light Glare-Like Stimuli2021

    • Author(s)
      Kobayashi Yuki、Zavagno Daniele、Morikawa Kazunori
    • Journal Title

      i-Perception

      Volume: 12 Issue: 1 Pages: 1-18

    • DOI

      10.1177/2041669521993144

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distinct processes of lighting priors for lightness and 3-D shape perception2021

    • Author(s)
      Kobayashi Yuki、Zavagno Daniele、Morikawa Kazunori
    • Journal Title

      Journal of Vision

      Volume: 21 Issue: 6 Pages: 1-11

    • DOI

      10.1167/jov.21.6.1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Viewpoint Invariance of Eye Size Illusion Caused by Eyeshadow2019

    • Author(s)
      Hiroyuki Muto, Mayu Ide, Akitoshi Tomita & Kazunori Morikawa
    • Journal Title

      Frontiers in Psychology

      Volume: 10

    • DOI

      10.3389/fpsyg.2019.01510

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An upward-facing surface appears darker: The role played by the light-from-above assumption in lightness perception.2019

    • Author(s)
      Kobayashi, Y., & Morikawa, K.
    • Journal Title

      Perception

      Volume: 48 Issue: 6 Pages: 500-514

    • DOI

      10.1177/0301006619847590

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Object’s symmetry alters spatial perspective-taking processes.2019

    • Author(s)
      Muto, H., Matsushita, S., & Morikawa, K.
    • Journal Title

      Cognition

      Volume: 191 Pages: 103987-103987

    • DOI

      10.1016/j.cognition.2019.05.024

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 服装と化粧による身体・顔の錯視(3)2024

    • Author(s)
      森川和則
    • Organizer
      第18回錯覚ワークショップ
    • Related Report
      2023 Annual Research Report
  • [Presentation] The illusory effects of makeup on the perceived eye slant are asymmetric2023

    • Author(s)
      Morikawa, K., Ogawa, H., & Sung, R.
    • Organizer
      the 46th annual European Conference on Visual Perception
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 観察距離がアイメイクによる目の過大視と魅力度評定に及ぼす影響2023

    • Author(s)
      成 里紗,森川和則,長島愛,岡﨑俊太郎,松本聖子,多久和望
    • Organizer
      第28回日本顔学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Body size illusions caused by polka dot dresses2022

    • Author(s)
      Morikawa, K., Tomita, A., & Katsuki, R.
    • Organizer
      45th annual European Conference on Visual Perception
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] マスクの明度が目の形状知覚に及ぼす影響2022

    • Author(s)
      成里紗・森川和則
    • Organizer
      第27回日本顔学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 服装のドット模様の直径が体型知覚に与える影響2021

    • Author(s)
      富田瑛智・甲木涼麻・森川和則
    • Organizer
      日本基礎心理学会第40回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 服装の縞模様による体型錯視2020

    • Author(s)
      富田瑛智・服部茉衣子・甲木涼麻・森川和則
    • Organizer
      日本心理学会第84回大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Tucking in your shirt makes your body look slimmer and your legs look longer: Psychophysical measurements of illusions caused by clothing2019

    • Author(s)
      Akitoshi TOMITA, Kyoka SAITO, and Kazunori MORIKAWA
    • Organizer
      European Conference on Visual Perception
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 服装による体型錯視の検討:タックインによる脚長錯視効果2019

    • Author(s)
      富田瑛智・齊藤杏佳・森川和則
    • Organizer
      日本心理学会第83回大会
    • Related Report
      2019 Research-status Report
  • [Book] The Oxford Compendium of Visual Illusions (Second Edition)2024

    • Author(s)
      Kazunori Morikawa (A.G. Shapiro, D. Todorovic, & K. Takahashi (Eds.))
    • Total Pages
      10
    • Publisher
      Oxford University Press
    • Related Report
      2023 Annual Research Report
  • [Book] どんな服でも似合う人になる 着こなしの法則: スタイルを作る“魔法の錯視”2020

    • Author(s)
      森川和則(監修)
    • Total Pages
      128
    • Publisher
      日本文芸社
    • ISBN
      9784537217964
    • Related Report
      2020 Research-status Report 2019 Research-status Report
  • [Remarks] 最近の研究成果ダウンロード

    • URL

      http://kiso.hus.osaka-u.ac.jp/morikawa/morikawa_pub_download.html

    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] メイク提案方法、メイク評価方法、メイク支援方法、メイク提案装置、及びメイク評価装置2023

    • Inventor(s)
      森川和則 他
    • Industrial Property Rights Holder
      大阪大学、(株)資生堂
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] テクスチャ勾配を活用した小顔マスク2021

    • Inventor(s)
      森川和則、長島愛、山南春奈
    • Industrial Property Rights Holder
      森川和則、長島愛、山南春奈
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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