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Acoustic Property and Clinical Mechanism of the Singing Bowl Sound

싱잉볼 소리의 특성 및 임상적인 기전

  • Kim, Seong Chan (Interdisciplinary Postgraduate Course in Biomedical Eng., Jeju National Univ.) ;
  • Hong, Geum Na (Grad. School of Jeju National Univ.) ;
  • Choi, Min Joo (Dept. of Medicine, College of Medicine, Jeju National Univ.)
  • 김성찬 (제주대학교 의공학협동과정) ;
  • 홍금나 (제주대학교 대학원) ;
  • 최민주 (제주대학교 의학대학 의학과)
  • Received : 2022.09.06
  • Accepted : 2022.09.21
  • Published : 2022.09.30

Abstract

Background: The singing bowl is a bowl-shaped percussion instrument and is used in meditation and healing programs, but the mechanism of its clinical effects is unclear. Purpose: In this paper, we reviewed the peculiar acoustic property of the singing bowl sound and discussed on physical mechanisms of the clinical effects of the singing bowl sound. Methods: We studied the literature by reviewing it. Results: There are multiple pitches at adjacent frequencies in the singing bowl sound, and they give rise to the beat phenomenon. This results in a solid persisting beating felt in the singing bowl sound. Furthermore, the beat that depends on singing bowls and playing methods includes a rhythm often similar to the frequency band of brain waves (theta wave) observed in meditative states and induces a synchronization phenomenon in which the rhythm activates the brain waves in meditative states. Furthermore, we are to infer that the clinical effect of the singing bowl sound is closely associated with the synchronization of brain waves to the beat rhythm of the singing bowl sound. Conclusion: To clearly understand the clinical mechanism of the singing bowl sound, we suggest further systematic studies on the psychological and physiological responses to the beats of the singing bowl sound.

배경: 싱잉볼은 그릇 모양의 타악기로 명상 및 치유 프로그램에 활용되고 있으나, 임상적 효과에 대한 기전이 명확하지 않다. 목적: 본 논문에서는 싱잉볼 소리의 독특한 음향학적인 특성을 개관하고, 싱잉볼의 효과를 유도하는 물리적인 기전에 대해 토의했다. 방법: 문헌을 고찰하여 연구하였다. 결과: 싱잉볼 소리는 인접한 다수의 피치의 소리가 포함되어 있어 맥놀이 현상이 발생한다. 싱잉볼 소리에서 느끼는 강하고 지속적인 소리의 울림은 맥놀이 현상의 결과이다. 싱잉볼 소리의 울림은 싱잉볼 악기 및 연주 방법에 좌우되며, 대체로 명상 상태에서 관찰되는 뇌파(세타파)와 유사한 리듬을 포함하며 명상 뇌파를 활성화하는 동조 현상을 유발한다. 싱잉볼 소리의 임상적 효과는 주로 싱잉볼 소리의 울림의 리듬과 뇌파의 동조 효과와 밀접하게 관련된 것으로 추정된다. 결론: 싱잉볼 소리의 임상적인 효과에 대한 기전을 명확히 이해하기 위해서는 싱잉볼 소리의 울림에 대한 심리 및 생리적인 반응에 대한 체계적인 연구가 필요하다.

Keywords

Acknowledgement

이 논문은 2022학년도 제주대학교 교육·연구 및 학생지도비 지원에 의해서 연구되었음.

References

  1. Aarts, R.M., O. Ouweltjes, and M. Bulut. 2014. An electroacoustic implementation of Tibetan bowls: Acoustics and perception. Noise Vib. Worldw. 45(1): 12-23. doi: 10.1260/0957-4565.45.1.12
  2. Ahn, I., S. Kim, M.S. Bae, and M.J. 2018. A Study on the Characteristics of Singing Bowl's Sound. Asia-pacific J. Multimed. Serv. Converg. with Art, Human., Sociol. 8(4): 269-276.doi: 10.35873/ajmahs.2018.8.4.024
  3. Bergmann, M., S. Riedinger, A. Stefani, T. Mitterling, E. Holzknecht, P. Grassmayr, and B. Hogll. 2020. Effects of singing bowl exposure on Karolinska sleepiness scale and pupillographic sleepiness test: A randomised crossover study. Plos one. 15(6): e0233982. https://doi.org/10.1371/journal.pone.0233982
  4. Cahn, B.R. and J. Polich. 2006. Meditation states and traits: EEG, ERP, and neuroimaging studies. Psychol. Bull. 132(2): 180-211. doi: 10.1037/0033-2909.132.2.180
  5. Chaieb, L., E.C. Wilpert, C. Hoppe, N. Axmacher, and J. Fell. 2017. The impact of monaural beat stimulation on anxiety and cognition. Front. Hum. Neurosci. 11: 251. doi:10.3389/fnhum.2017.00251
  6. Collin, S.R., C.L. Keefer, and T.R. Moore. 2015. The etiology of chatter in the himalayan singing bowl. Proc. Third Vienna Talk on Music Acoustics(Vienna) 16(1): 19. doi:10.3389/fnhum.2017.00251
  7. Engelbregt, H., M. Barmentlo, D. Keeser, O. Pogarell, and J.B. Deijen. 2021. Effects of binaural and monaural beat stimulation on attention and EEG. Exp. Brain Res. 239(9): 2781-2791. doi:10.1007/s00221-021-06155-z.
  8. Goldsby, T.L., M. Goldsby, E.,M. McWalters, and P.J. Mills. 2017. Effects of singing bowl sound meditation on mood, tension, and well-being: An observational study. Evid. Based Complement. Alternat. Med. 22(3): 401-406. doi:10.1177/2156587216668109
  9. Hwang J.H. and S.Y. Lee. 2014. The relationship between the harmony progression and the emotional symptoms of characters in the movie, 'The Hours'. J. Kor. Contents Ass. 14.(11): 678-685. doi:10.5392/JKCA.2014.14.11.678
  10. Inacio, O., L.L. Henrique, and J. Antunes. 2006. The dynamics of Tibetan singing bowls. Acta Acust. 92(4): 637-653.
  11. Jablonska, M., T. Maciag, M. Nowak, T. Rzychon, M. Czerny, and K. Kowalczyk, 2019. Thermal and structural analysis of high-tin bronze of chemical composition corresponding to the composition of the singing bowl. J. Therm. Anal. Calorim. 137(3): 735-741. https://doi.org/10.1007/s10973-019-08015-z
  12. Jun, Y.K. 2019. A Study on relationship between relaxation inducement and brain wave through research on undulation beat analysis of Singing bowl sound. Asia-pacific J. Multimed. Serv. Converg. with Art. Human., Sociol. 9(9): 547-558. doi:10.35873/ajmahs.2019.9.9.047
  13. Jung, H.J. 2005. Music therapy : Understanding and application. Ewha Womans University Press, Seoul, p.234.
  14. Landry, J.M. 2014. Physiological and psychological effects of a Himalayan singing bowl in meditation practice: a quantitative analysis. Am. J. Health Promot. 28(5): 306-309. doi: 10.4278/ajhp.121031-ARB-528.
  15. Lee, B.K. 2011. The dramatic meaning of Neapolitan sixth chords in handel's oratorios. J. Music Theory 17: 34-65.
  16. Meyer, A., H. Portalska, M. Portalski, A. Konieczka, and J. Balcerek. 2008. Visualization of sound bowl acoustic field, New Trends in Audio and Video / Signal Processing Algorithms, Architectures, Arrangements, and Applications SPA 2008. IEEE 2018: 103-108.
  17. Stumpf, F.B. 1980. Analytical acoustics. Ann. Arbor. Michigan, pp.173-174.
  18. Terwagne, D. and J.W.M. Bush. 2011. Tibetan singing bowls. Nonlinearity 24(8): 51.
  19. Walter, N. and T. Hinterberger. 2022. Neurophysiological effects of a singing bowl massage. Medicina 58(5): 594. doi: 10.3390/medicina58050594
  20. Wang, B.T., C.L. Tsai, and Y.H. Wu. 2018. Vibration modes and sound characteristic analysis for different sizes of singing bowls. 2018 The 3rd International Conference on Precision Machinery and Manufacturing Technology 185: 00017. doi.: 10.1051/matecconf/201818500017