Dynamics in interbrain synchronization while playing a piano duet

Author:

Lender Anja12,Perdikis Dionysios13,Gruber Walter4,Lindenberger Ulman156,Müller Viktor1

Affiliation:

1. Max Planck Institute for Human Development Center for Lifespan Psychology Berlin Germany

2. Centre for Cognitive Neuroscience University of Salzburg Salzburg Austria

3. Charité‐Universitätsmedizin Berlin Berlin Germany

4. Department of Physiological Psychology University of Salzburg Salzburg Austria

5. Max Planck UCL Centre for Computational Psychiatry and Ageing Research London UK

6. Max Planck UCL Centre for Computational Psychiatry and Ageing Research Berlin Germany

Abstract

AbstractHumans interact with each other through actions that are implemented by sensory and motor processes. To investigate the role of interbrain synchronization emerging during interpersonal action coordination, electroencephalography data from 13 pairs of pianists were recorded simultaneously while they performed a duet together. The study aimed to investigate whether interbrain phase couplings can be reduced to similar bottom‐up driven processes during synchronous play, or rather represent cognitive top‐down control required during periods of higher coordination demands. To induce such periods, one of the musicians acted as a confederate who deliberately desynchronized the play. As intended, on the behavioral level, the perturbation caused a breakdown in the synchronization of the musicians’ play and in its stability across trials. On the brain level, interbrain synchrony, as measured by the interbrain phase coherence (IPC), increased in the delta and theta frequency bands during perturbation as compared to non‐perturbed trials. Interestingly, this increase in IPC in the delta band was accompanied by the shift of the phase difference angle from in‐phase toward anti‐phase synchrony. In conclusion, the current study demonstrates that interbrain synchronization is based on the interpersonal temporal alignment of different brain mechanisms and is not simply reducible to similar sensory or motor responses.

Funder

Max-Planck-Gesellschaft

Publisher

Wiley

Subject

History and Philosophy of Science,General Biochemistry, Genetics and Molecular Biology,General Neuroscience

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