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Related Experiment Video

Updated: May 8, 2026

Group Synchronization During Collaborative Drawing Using Functional Near-Infrared Spectroscopy
07:53

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Published on: August 5, 2022

Let's dance together: synchrony, shared intentionality and cooperation.

Paul Reddish1, Ronald Fischer, Joseph Bulbulia

  • 1School of Psychology, Victoria University of Wellington, Wellington, New Zealand. paulreddishnz@gmail.com

Plos One
|August 17, 2013
PubMed
Summary
This summary is machine-generated.

Group synchrony and shared intentionality significantly boost cooperation. This finding explains the evolutionary role of music and dance in fostering collective behaviors and cultural values.

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Area of Science:

  • Social Psychology
  • Evolutionary Anthropology
  • Behavioral Economics

Background:

  • Rhythmic behavior matching (synchrony) between individuals enhances cooperation.
  • Collective performances like music and dance often involve both synchrony and shared intentionality.

Purpose of the Study:

  • To investigate the role of shared intentionality in promoting cooperation through group synchrony.
  • To determine whether synchrony or shared intentionality is more critical for cooperation.

Main Methods:

  • Three experiments were conducted, manipulating synchrony and shared intentionality.
  • Participants engaged in tasks involving rhythmic beats and collaborative goals.
  • Path analysis was used to model the reinforcement of cooperation.

Main Results:

  • Synchrony combined with shared intentionality led to the highest levels of cooperation.
  • Both synchrony and shared intentionality independently increased cooperation, but their combination was most effective.
  • The reinforcement of cooperation model was supported by the data.

Conclusions:

  • Shared intentionality is crucial for maximizing the cooperative benefits of group synchrony.
  • The findings support an evolutionary explanation for music and dance in promoting social cohesion.
  • Collectivist cultural values may enhance the mechanisms by which synchrony promotes cooperation.