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Pattern analysis without seeing patterns: Understanding diversity recognition bias through model-based quantification

Research Project

Project/Area Number 20K21814
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 61:Human informatics and related fields
Research InstitutionOsaka University

Principal Investigator

MIYAZAWA Seita  大阪大学, 大学院生命機能研究科, 特任准教授(常勤) (10377905)

Project Period (FY) 2020-07-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords模様パターン
Outline of Research at the Start

「似てるけどちょっと違う…」「全然似てない…」動物の模様を見るとき、我々は無意識のうちにそのパターンを識別し、分類している。直感的には妥当に思えるそうした「模様の見方」は、本当に正しいのだろうか?「似ている」ように見える模様が実はあまり近くなく、「全然違う」ように見える模様が本当はとても近い――これまでの「模様の見方」を覆すそうした事例が、パターン形成の数理モデルを用いた最近の研究から明らかになってきている。本研究では、「模様を見ない」(=主観・直感に頼らない)模様解析の手法をモデルにもとづき確立することで、我々が「見えているのに見逃していた」多様性認知バイアスをあぶり出すことを目指す。

Outline of Final Research Achievements

When observing patterns found in nature, such as animal body surface patterns, we unconsciously identify and classify them. Since differences in patterns seem to be "visually apparent" to anyone, there has been a tendency to consider "completely different color patterns" as solid evidence of a new or different species. In this research project, we explored a method of pattern quantification that does not rely on visual inspection (i.e., subjective intuition). By combining pattern analysis with phylogenetic analyses, it was suggested that there may be some biases in our intuitive pattern recognition and diversity perception.

Academic Significance and Societal Importance of the Research Achievements

生物多様性を客観的に捉え、認識する上では、対象となる形質を定量的に評価する基準が不可欠です。動物体表の模様パターンのような複雑な形質について、研究者の経験や「目」に頼らない、客観的・定量的な基準の可能性を新たに提示したという意味で、本研究で検討したパターン定量化手法は意義をもつと考えられます。本研究の成果をもとに、より高次の形質に対しても適用できるようになれば、これら形質の多様性を生み出すゲノム基盤へのアプローチも可能となり、生物多様性の構造や進化プロセスに対する我々の認識にも変革がもたらされると期待されます。

Report

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

    (15 results)

All 2025 2023 2022 2021 2020 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Book (3 results) Remarks (2 results)

  • [Journal Article] 魚の体表模様の多様性を探る2022

    • Author(s)
      宮澤 清太
    • Journal Title

      科学

      Volume: 92 Pages: 974-981

    • Related Report
      2022 Research-status Report
  • [Journal Article] Studies of Turing pattern formation in zebrafish skin2021

    • Author(s)
      Shigeru Kondo, Masakatsu Watanabe, S. Miyazawa
    • Journal Title

      Philosophical Transactions of the Royal Society A

      Volume: - Issue: 2213 Pages: 20200274-20200274

    • DOI

      10.1098/rsta.2020.0274

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pattern blending enriches the diversity of animal colorations2020

    • Author(s)
      Miyazawa Seita
    • Journal Title

      Science Advances

      Volume: 6 Issue: 49

    • DOI

      10.1126/sciadv.abb9107

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 魚類模様パターンデータベースの構築と活用2023

    • Author(s)
      宮澤 清太
    • Organizer
      日本動物学会第94回山形大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Can "pattern blending" cause speciation through hybridization?2023

    • Author(s)
      Seita Miyazawa
    • Organizer
      Gordon Research Conference Speciation
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] フグ科魚類の体表模様と種間交雑2022

    • Author(s)
      宮澤 清太
    • Organizer
      第38回個体群生態学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 魚の虫食い模様が生まれるしくみを考える2022

    • Author(s)
      宮澤 清太
    • Organizer
      新潟大学 形の科学研究センター シンポジウム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 魚類体表模様パターンへの系統比較法適用の試み2021

    • Author(s)
      宮澤 清太
    • Organizer
      日本進化学会第23回オンライン大会
    • Related Report
      2021 Research-status Report
  • [Presentation] How fish got their complex color patterns2021

    • Author(s)
      Seita Miyazawa
    • Organizer
      The 2nd AsiaEvo Conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Patterns and Phylogeny of Arothron Pufferfish2020

    • Author(s)
      宮澤 清太
    • Organizer
      日本進化学会第22回オンライン大会
    • Related Report
      2020 Research-status Report
  • [Book] 理論生物学事典2025

    • Author(s)
      巌佐 庸、大槻 久、佐竹暁子、望月敦史(編)
    • Publisher
      朝倉書店
    • Related Report
      2023 Annual Research Report
  • [Book] Pigments, Pigment Cells and Pigment Patterns (Hashimoto, H., Goda, M., Futahashi, R., Kelsh, R., Akiyama, T. Eds.)2021

    • Author(s)
      Miyazawa Seita, Watanabe Masakatsu, Kondo Shigeru
    • Total Pages
      484
    • Publisher
      Springer, Singapore
    • ISBN
      9789811614897
    • Related Report
      2021 Research-status Report
  • [Book] Pigments, Pigment Cells and Pigment Patterns (Hashimoto, H., Goda, M., Futahashi, R., Kelsh, R., Akiyama, T. Eds.)2021

    • Author(s)
      Miyazawa Seita, Watanabe Masakatsu, Kondo Shigeru
    • Total Pages
      417
    • Publisher
      Springer Singapore
    • ISBN
      9789811614897
    • Related Report
      2020 Research-status Report
  • [Remarks] 動物のふしぎな模様、どうしてできる?

    • URL

      https://www.fbs.osaka-u.ac.jp/ja/research_results/papers/detail/1011

    • Related Report
      2020 Research-status Report
  • [Remarks] 動物のふしぎな模様、どうしてできる?

    • URL

      https://resou.osaka-u.ac.jp/ja/research/2020/20201203_1

    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-08-03   Modified: 2025-01-30  

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