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Endogenous sources of interbrain synchrony in duetting pianists

When people interact with each other, their brains synchronize. However, it remains unclear whether interbrain synchrony (IBS) is functionally relevant for social interaction or stems from exposure of individual brains to identical sensorimotor information. To disentangle these views, the current du...

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Autores principales: Gugnowska, Katarzyna, Novembre, Giacomo, Kohler, Natalie, Villringer, Arno, Keller, Peter E, Sammler, Daniela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9476614/
https://www.ncbi.nlm.nih.gov/pubmed/35029645
http://dx.doi.org/10.1093/cercor/bhab469
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author Gugnowska, Katarzyna
Novembre, Giacomo
Kohler, Natalie
Villringer, Arno
Keller, Peter E
Sammler, Daniela
author_facet Gugnowska, Katarzyna
Novembre, Giacomo
Kohler, Natalie
Villringer, Arno
Keller, Peter E
Sammler, Daniela
author_sort Gugnowska, Katarzyna
collection PubMed
description When people interact with each other, their brains synchronize. However, it remains unclear whether interbrain synchrony (IBS) is functionally relevant for social interaction or stems from exposure of individual brains to identical sensorimotor information. To disentangle these views, the current dual-EEG study investigated amplitude-based IBS in pianists jointly performing duets containing a silent pause followed by a tempo change. First, we manipulated the similarity of the anticipated tempo change and measured IBS during the pause, hence, capturing the alignment of purely endogenous, temporal plans without sound or movement. Notably, right posterior gamma IBS was higher when partners planned similar tempi, it predicted whether partners’ tempi matched after the pause, and it was modulated only in real, not in surrogate pairs. Second, we manipulated the familiarity with the partner’s actions and measured IBS during joint performance with sound. Although sensorimotor information was similar across conditions, gamma IBS was higher when partners were unfamiliar with each other’s part and had to attend more closely to the sound of the performance. These combined findings demonstrate that IBS is not merely an epiphenomenon of shared sensorimotor information but can also hinge on endogenous, cognitive processes crucial for behavioral synchrony and successful social interaction.
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spelling pubmed-94766142022-09-19 Endogenous sources of interbrain synchrony in duetting pianists Gugnowska, Katarzyna Novembre, Giacomo Kohler, Natalie Villringer, Arno Keller, Peter E Sammler, Daniela Cereb Cortex Original Article When people interact with each other, their brains synchronize. However, it remains unclear whether interbrain synchrony (IBS) is functionally relevant for social interaction or stems from exposure of individual brains to identical sensorimotor information. To disentangle these views, the current dual-EEG study investigated amplitude-based IBS in pianists jointly performing duets containing a silent pause followed by a tempo change. First, we manipulated the similarity of the anticipated tempo change and measured IBS during the pause, hence, capturing the alignment of purely endogenous, temporal plans without sound or movement. Notably, right posterior gamma IBS was higher when partners planned similar tempi, it predicted whether partners’ tempi matched after the pause, and it was modulated only in real, not in surrogate pairs. Second, we manipulated the familiarity with the partner’s actions and measured IBS during joint performance with sound. Although sensorimotor information was similar across conditions, gamma IBS was higher when partners were unfamiliar with each other’s part and had to attend more closely to the sound of the performance. These combined findings demonstrate that IBS is not merely an epiphenomenon of shared sensorimotor information but can also hinge on endogenous, cognitive processes crucial for behavioral synchrony and successful social interaction. Oxford University Press 2022-01-14 /pmc/articles/PMC9476614/ /pubmed/35029645 http://dx.doi.org/10.1093/cercor/bhab469 Text en © The Author(s) 2022. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Gugnowska, Katarzyna
Novembre, Giacomo
Kohler, Natalie
Villringer, Arno
Keller, Peter E
Sammler, Daniela
Endogenous sources of interbrain synchrony in duetting pianists
title Endogenous sources of interbrain synchrony in duetting pianists
title_full Endogenous sources of interbrain synchrony in duetting pianists
title_fullStr Endogenous sources of interbrain synchrony in duetting pianists
title_full_unstemmed Endogenous sources of interbrain synchrony in duetting pianists
title_short Endogenous sources of interbrain synchrony in duetting pianists
title_sort endogenous sources of interbrain synchrony in duetting pianists
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9476614/
https://www.ncbi.nlm.nih.gov/pubmed/35029645
http://dx.doi.org/10.1093/cercor/bhab469
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