Interpersonal synchrony of spontaneous movements (all conditions - linear correlations)
Averaged (Pearson’s) correlation coefficients indexing interpersonal movement synchrony, across all body part combinations, separately for each experimental condition. Non-parametric permutation-based statistical tests revealed that spontaneous movements synchronized across multiple body parts, only when participants could see each other (∗p < 0.05 FDR-corrected). See also Figures S1 and S3.