Participants tend to Synchronize with the Tibetan Singing Bowl

Tibetan Singing Bowls (TSB) have been widely used for group meditation due to their effect on relaxation, mindfulness, and influence on physical function. Nevertheless, the underlying process of group synchronization is still not fully understood. This work investigated the synchronization among participant dyads participating in a TSB session. A one-hour TSB session was analyzed for cross-correlation and HRV feature complexity matching among the five participants. The results showed a state of relaxation (significant increase in SD1/SD2 and drop in power in VLF and LF frequency zone, with dyad synchronization throughout the session. Our work indicates that changes in sound frequencies as part of TSB meditation lead to participant synchronization.