Bonding Can Make Us Move in Unison, California Institute of Technology Study

Ever noticed how friends end up walking in synch or how an audience will eventually clap together? Scientists have measured this mysterious “brain-brain synchrony.” Although this type of synchronous body movement has been observed widely, its neurological mechanism and its role in social interactions remain obscure. Researchers found that body-movement synchronization between two participants increases following a short session of cooperative training, suggesting that our ability to synchronize body movements is a measurable indicator of social interaction.