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A basic and applied study on confidence-accuracy relationship in memory

Research Project

Project/Area Number 20530665
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Experimental psychology
Research InstitutionKeio University

Principal Investigator

ITOH Yuji  Keio University, 文学部, 教授 (70151545)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords記憶 / メタ認知 / 目撃証言 / 単独面通し / ラインナップ / 目撃記憶 / 確信度 / 対人間メタ認知 / 自人種効果 / 犯人識別判断 / C-A関連 / 文化間比較
Research Abstract

In an experiment on an eyewitness' identification of a criminal, we found that eyewitness' estimation of visibility of the criminal's face at the time of the crime, latency of eyewitness' identification decision, and so on influenced eyewitness' confidence. Prejudice that a suspect is the criminal influenced neither eyewitness' confidence nor confidence-accuracy relation. In an experiment on investigator's confidence change by eyewitness' identification result, we found that whether the race of an eyewitness and a criminal was same or not did not influence investigator's confidence change though investigators knew that identifications are more inaccurate when the race of an witness and a criminal is different.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (15 results)

All 2011 2010 2009 2008

All Journal Article (3 results) Presentation (12 results)

  • [Journal Article] 未来についての記憶が顔の再認記憶へ及ぼす影響2010

    • Author(s)
      日根恭子・野内類・伊東裕司
    • Journal Title

      慶應義塾大学大学院社会学研究科紀要

      Volume: 69 Pages: 145-156

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 目撃供述の信頼性:人物同一性判断を中心に2009

    • Author(s)
      伊東裕司
    • Journal Title

      言語 38(9)

      Pages: 20-27

    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Journal Article]2009

    • Author(s)
      伊東裕司
    • Journal Title

      裁判員制度と法心理学(第16章 裁判員の判断に対する感情的要因の影響)(ぎょうせい)

      Pages: 196-206

    • Related Report
      2009 Annual Research Report
  • [Presentation] 事前の思い込みがラインナップ手続きと単独面通し手続きに及ぼす影響の比較2011

    • Author(s)
      三浦大志、伊東裕司
    • Organizer
      日本認知心理学会第9回大会
    • Place of Presentation
      学習院大学
    • Year and Date
      2011-05-28
    • Related Report
      2010 Final Research Report
  • [Presentation] Effects of finger movement task on a recognition judgment : The revelation effect caused by the task that does not occupy working memory2011

    • Author(s)
      Miura, H., Itoh, Y.
    • Organizer
      The Ninth Tsukuba International Conference on Memory
    • Place of Presentation
      学習院大学
    • Year and Date
      2011-03-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] 直前の挿入課題が再認判断に及ぼす影響-Revelation Effectのメカニズム解明-2010

    • Author(s)
      三浦大志・伊東裕司
    • Organizer
      日本認知心理学会
    • Place of Presentation
      西南学院大学
    • Year and Date
      2010-05-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] 記憶に対する確信度評価における推測の影響2009

    • Author(s)
      舘瑞恵・伊東裕司
    • Organizer
      法と心理学会
    • Place of Presentation
      国学院大学(東京)
    • Year and Date
      2009-10-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] 目撃記憶における推測可能性と確信度と正確さの関連性2009

    • Author(s)
      舘瑞恵、伊東裕司
    • Organizer
      日本心理学会第73回大会
    • Place of Presentation
      立命館大学
    • Year and Date
      2009-09-26
    • Related Report
      2010 Final Research Report
  • [Presentation] 目撃記憶における推測可能性と確信度と正確さの関連性2009

    • Author(s)
      舘瑞恵・伊東裕司
    • Organizer
      日本心理学会
    • Place of Presentation
      立命館大学(京都)
    • Year and Date
      2009-08-26
    • Related Report
      2009 Annual Research Report
  • [Presentation] Evaluation of eyewitness identification evidence by studentinvestigators : Knowledge on own-race bias and its use2009

    • Author(s)
      Rie Sasaki, Kyoko Hine, Yuji Itoh, Melissa Boyce, Stephen Lindsay, C.A.E.Brimacombe
    • Organizer
      The 8th conference of the Society on Applied Research in Memory and Cognition
    • Place of Presentation
      Kyoto
    • Year and Date
      2009-07-29
    • Related Report
      2010 Final Research Report
  • [Presentation] Evaluation of eyewitness identification evidence by student-investigators : Knowledge on own-race bias and its use2009

    • Author(s)
      R.Sasaki, et.al.
    • Organizer
      The Society for Applied Research in Memory and Cognition
    • Place of Presentation
      京都
    • Year and Date
      2009-07-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] How does the Suspects' Race Affect the Impact of Witnesses ID on Student-Investigators? An Experiment with Japanese Participants2009

    • Author(s)
      Sasaki, Rie
    • Organizer
      Uvic - Keio Joint Seminar on Cognitive Psychology
    • Place of Presentation
      Victoria, Canada
    • Year and Date
      2009-03-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] Confidence-Accuracy Relationship in Eyewitness Memory Test2009

    • Author(s)
      Tachi, Mizue
    • Organizer
      UVic - Keio Joint Seminar on Cognitive Psychology
    • Place of Presentation
      Victoria, Canada
    • Year and Date
      2009-03-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] 一般知識による予測可能性が目撃記憶における確信度と正確さの関連に与える影響2008

    • Author(s)
      舘瑞恵、伊東裕司
    • Organizer
      法と心理学会第9回大会
    • Place of Presentation
      南山大学
    • Year and Date
      2008-10-18
    • Related Report
      2010 Final Research Report
  • [Presentation] 記憶の正確さと確信の強さを決める諸要因2008

    • Author(s)
      舘瑞恵、伊東裕司
    • Organizer
      日本心理学会第72回大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2008-09-21
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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