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Effects of behavioral synchrony on altruism and aggressiveness

Research Project

Project/Area Number 16K04257
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Social psychology
Research InstitutionTokyo Gakugei University

Principal Investigator

SHINADA Mizuho  東京学芸大学, 教育学部, 准教授 (70578757)

Project Period (FY) 2016-10-21 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords協力 / 競争 / 規範 / 身体的同期 / 向社会性 / 利他行動 / 攻撃行動 / 集団内協力 / 集団間競争 / 同調 / 攻撃性 / 集団 / リーダーシップ
Outline of Final Research Achievements

Recent studies have shown that behavioral synchrony, in which a person moves his or her body at the same time as others, is effective in eliciting pro-sociality, such as empathy and helping behavior, as well as a sense of unity and harmony with others. This study conducted a series of studies and experiments to clarify the effect of the behavioral synchrony. The results showed that 1. Cooperation and harmony are different norms, and harmony promotes aggression in some cases; 2. Behavioral synchrony leads to a deviation from the moral norms in situations where the in-group benefits in exchange for the moral norms; 3. Behavioral synchrony promotes the out-group aggression through a sense of unity in situations where inter-group competition is activated. These results suggest that behavioral synchrony not only promotes cooperative behavior within a group, but also is a factor that sometimes intensifies conflict between groups.

Academic Significance and Societal Importance of the Research Achievements

本研究で扱った身体的同期は、儀礼的行為、踊りや行進、合唱など、多様な組織・集団において行われている。こうした活動の多くは集団の絆を深めることを目的として行われるが、その負の側面を説明する理論はこれまで確立されていない。本研究は、この問題に対し4つの実証的研究を行い、身体的同期を伴う集合行動は、集団の絆を深め、好意や一体感を高めることに寄与するが、集団間の競争が強調された場合には、外集団攻撃が促進されることを明らかにした。これらの知見から、身体的同期を伴う集合行動を実施する際には、集団間の対立や競争を強調するのではなく、集団内・集団間の協力を目標として実施することが重要であることが示唆された。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2021 2019 2018 2017 Other

All Presentation (6 results) (of which Int'l Joint Research: 4 results) Remarks (1 results)

  • [Presentation] Synchrony enhances in-group altruism and inter-group competition.2021

    • Author(s)
      品田瑞穂
    • Organizer
      The 32th International Congress of Psychology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Why Do We Ostracize a Group Member? : The Effect of Cooperation and Conformity.2019

    • Author(s)
      Mizuho Shinada
    • Organizer
      International Convention of Psychological Science
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Synchrony and Pro-Social Lying2018

    • Author(s)
      Mizuho Shinada
    • Organizer
      the 30th APS ( Association for Psychological Science) Annual Convention
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 身体的同期が望ましくない利他行動に与える影響2018

    • Author(s)
      品田瑞穂
    • Organizer
      日本心理学会第82回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Synchrony and pro-social lying2018

    • Author(s)
      Mizuho Shinada
    • Organizer
      The 30th Association for Psychological Science Annual Convention
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 調和規範と協力規範が排斥行動に及ぼす影響2017

    • Author(s)
      品田瑞穂
    • Organizer
      日本心理学会第81回大会
    • Related Report
      2017 Research-status Report
  • [Remarks] 東京学芸大学社会心理学研究室(品田瑞穂)

    • URL

      http://www.u-gakugei.ac.jp/~shinada/index.html

    • Related Report
      2018 Research-status Report

URL: 

Published: 2016-10-24   Modified: 2021-02-19  

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