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Hyperbrain network properties of guitarists playing in quartet
Viktor Müller1, Johanna Sänger1, Ulman Lindenberger1,2,3
1Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany.
Annals of the New York Academy of Sciences
|March 16, 2018
Summary
Musicians playing together exhibit synchronized brain activity, forming complex "hyperbrain networks." These networks dynamically adjust communication frequencies and structures to support coordinated musical performance.
Area of Science:
- Neuroscience
- Music Cognition
- Network Science
Background:
- Ensemble musicians require precise coordination.
- Previous research indicated interbrain synchronization in guitar duets.
Purpose of the Study:
- Investigate synchronized cortical activity in a four-guitarist ensemble.
- Explore the extent and functional significance of hyperbrain networks.
Main Methods:
- Simultaneous electroencephalogram (EEG) recording from four guitarists.
- Analysis of intra- and interbrain connectivity within hyperbrain networks.
- Examination of network topology, information flow, and temporal dynamics.
Main Results:
- Hyperbrain networks utilize higher frequencies for intrabrain and lower frequencies for interbrain communication.
- Networks exhibit small-world topology, varying with frequency.
- Two information flow types (intra- and intermodular) were identified.
- Network structures were unstable and context-dependent.
Conclusions:
- Complex hyperbrain network interactions support coordinated action in musical ensembles.
- Findings reveal mechanisms for temporal coordination in joint action.
- Dynamic network properties are crucial for real-time musical interaction.
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