Landry, J. M. (2013). Physiological and Psychological Effects of a Himalayan Singing Bowl in Meditation Practice: A Quantitative Analysis. American Journal of Health Promotion. From the Abstract.
Purpose. To determine the physiological and psychological effects of adding a Himalayan singing bowl (HSB) to a directed relaxation (DR) session.
Subjects. Fifty-one participants completed two randomly assigned sessions beginning with either 12 minutes of HSB or silence, followed by a 20-minute DR session.
Measures. Blood pressure (BP), heart rate (HR), Positive and Negative Affect Schedule (PANAS) scores measured before and after both sessions.
Results. Fifty-one participants completed both sessions. There was a greater decline in systolic BP and HR with HSB compared to silence prior to DR. Changes in diastolic BP were greater with HSB, with a nonsignificant trend. Hypertensive subjects had similar and significant BP changes with HSB and silence when compared to normotensive subjects).
Conclusions. BP and HR responses were enhanced by HSB exposure.