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Complex networks emerging during choir singing.

Viktor Müller1, Julia A M Delius1, Ulman Lindenberger1,2,3

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|July 31, 2018
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Choir singing synchronizes respiratory and cardiac systems, linking them to vocal and motor patterns. This coordination, especially in group singing, reveals the choir as a superorganism supporting individual well-being.

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Area of Science:

  • Neuroscience
  • Psychology
  • Musicology
  • Physiology

Background:

  • Choir singing enhances well-being and quality of life.
  • Singing involves complex coordination of physiological systems within and between individuals.
  • Interpersonal action coordination models provide a framework for understanding group activities.

Purpose of the Study:

  • To delineate the network topography of choir singing.
  • To analyze cross-frequency and within-frequency couplings (WFCs) of respiratory, cardiac, vocalizing, and motor subsystems during singing.
  • To investigate how coordination dynamics differ in group singing (canon in parts vs. unison).

Main Methods:

  • Analysis of cross-frequency couplings (CFCs) and within-frequency couplings (WFCs).
  • Measurement of respiratory, cardiac, vocalizing, and motor subsystems.
  • Comparison of coupling patterns during singing in canon (parts) versus unison.

Main Results:

  • Respiratory and cardiac subsystems synchronize during singing.
  • These systems are coupled to vocalization oscillations and the conductor's motor oscillations.
  • Cross-frequency connections are stronger when singing in canon (parts), while WFCs are more pronounced in unison singing.

Conclusions:

  • Temporal coordination dynamics of physiological subsystems form the functional basis of choir singing.
  • During singing, the choir operates as a superordinate system (superorganism).
  • This collective system influences the dynamic features of individual singers.