Year: 2024
Type: conference-paper
Abstract: Investigating the effect of Tibetan Singing Bowls (TSB) meditation on physiological features including heart rate is limited. This study focused on applying multiscale modified diffusion entropy analysis (MSMDEA) on heart-rate fluctuations exhibiting 1/f noise. MSMDEA identifies the contribution of crucial events within a 1/f-noise time series that differs from the well-known Fractional Brownian Motion (FBM) 1/f-noise. Crucial events (µ) are defined as the waiting time distribution characterized by an inverse power law probability density function with the temporal complexity coefficient µ at 2< µ <3 computed from the MSMDEA complexity scaling parameter δ. Eight healthy participants underwent a 50-minute session of TSB meditation with their heart rate signals measured using a Polar Ignite wristwatch. MSMDEA was applied across 20-time scales on the signals from the first ten minutes of the session as baseline and compared to the TSB meditation of 40 minutes. Correlation rate analysis was also performed, showing increased synchronization properties between subjects associated with TSB compared to baseline. Results indicate a shift to higher complexity for all scales in the TSB meditation group (p<0.05), suggesting that TSB leads to an increase in 1/f-noise associated with crucial events and has a strong influence on the sympathovagal balance associated with 1/f-noise and consequently on improving stress and anxiety. Results also show the superiority of complexity analysis using crucial events in determining and characterizing the differences in HR signals before and during meditative states compared to a traditional HRV analysis using the standard time and frequency HRV metrics.
Institution: Khalifa University of Science and Technology
Language: English
Subfield: Cardiology and Cardiovascular Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
OpenAlex ID: W4412809960