Still want to help? Interpersonal coordination's effects on helping behaviour after a 24 hour delay.

A fast-growing literature is establishing how moving in time together has pro-social consequences, though no work to date has explored the persistence of these effects over time. Across two studies, people who had previously performed coordinated movements were over three times more likely to give their time to help their co-actor when asked 24 hours later than those who had performed a similar but uncoordinated task. Findings showed that group-level categorisation, but not social affiliation, partially mediated helping behaviour.