Synchrony and cooperation

Sources

• Hove, M. J., & Risen, J. L. (2009). It's all in the timing: Interpersonal synchrony increases affiliation. doi:10.1521/soco.2009.27.6.949

  Level B Experiment

  Supports the claim that the degree of interpersonal synchrony predicted affiliation ratings. A minimal laboratory task far removed from dance or crowds.

• Wiltermuth, S. S., & Heath, C. (2009). Synchrony and cooperation. doi:10.1111/j.1467-9280.2008.02253.x

  Level B Experiment

  Supports the claim that synchronous activity increased later cooperation, including under personal cost. Short laboratory tasks; long-term effects were not studied.

Sources

• Tarr, B., Launay, J., Cohen, E., & Dunbar, R. (2015). Synchrony and exertion during dance independently raise pain threshold and encourage social bonding. doi:10.1098/rsbl.2015.0767

  Level B Experiment

  Supports the claim that synchrony and exertion each raised pain thresholds and in-group bonding. Pain threshold is a proxy for endorphin activity, which was not measured directly.

• Wiltermuth, S. S., & Heath, C. (2009). Synchrony and cooperation. doi:10.1111/j.1467-9280.2008.02253.x

  Level B Experiment

  Supports the claim that synchronous activity increased later cooperation, including under personal cost. Short laboratory tasks; long-term effects were not studied.

• Hove, M. J., & Risen, J. L. (2009). It's all in the timing: Interpersonal synchrony increases affiliation. doi:10.1521/soco.2009.27.6.949

  Level B Experiment

  Supports the claim that the degree of interpersonal synchrony predicted affiliation ratings. A minimal laboratory task far removed from dance or crowds.

• Salimpoor, V. N., Benovoy, M., Larcher, K., Dagher, A., & Zatorre, R. J. (2011). Anatomically distinct dopamine release during anticipation and experience of peak emotion to music. doi:10.1038/nn.2726

  Level B Experiment

  Supports the claim that peak emotional responses to music were accompanied by striatal dopamine release, with caudate and nucleus accumbens linked to anticipation and experience. Small imaging sample of self-selected music; not about dance music or crowds.

Sources

• Strogatz, S. H. (2000). From Kuramoto to Crawford: Exploring the onset of synchronization in populations of coupled oscillators. doi:10.1016/S0167-2789(00)00094-4

  Level D Review

  Supports the claim that, in the Kuramoto model, oscillators with natural frequencies drawn from a distribution undergo a transition when coupling exceeds a threshold, with some synchronizing and others remaining incoherent. A mathematical review; it offers no evidence about human synchrony or social bonding.

• Wiltermuth, S. S., & Heath, C. (2009). Synchrony and cooperation. doi:10.1111/j.1467-9280.2008.02253.x

  Level B Experiment

  Supports the claim that synchronous activity increased later cooperation, including under personal cost. Short laboratory tasks; long-term effects were not studied.

• Tarr, B., Launay, J., Cohen, E., & Dunbar, R. (2015). Synchrony and exertion during dance independently raise pain threshold and encourage social bonding. doi:10.1098/rsbl.2015.0767

  Level B Experiment

  Supports the claim that synchrony and exertion each raised pain thresholds and in-group bonding. Pain threshold is a proxy for endorphin activity, which was not measured directly.