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Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality
Cooperation and competition are two ways of social interaction keys to life in society. Recent EEG-based hyperscanning studies reveal that cooperative and competitive interactions induce an increase in interbrain coupling. However, whether this interbrain coupling effect is just a reflection of inte...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7406570/ https://www.ncbi.nlm.nih.gov/pubmed/32848670 http://dx.doi.org/10.3389/fnhum.2020.00295 |
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author | Barraza, Paulo Pérez, Alejandro Rodríguez, Eugenio |
author_facet | Barraza, Paulo Pérez, Alejandro Rodríguez, Eugenio |
author_sort | Barraza, Paulo |
collection | PubMed |
description | Cooperation and competition are two ways of social interaction keys to life in society. Recent EEG-based hyperscanning studies reveal that cooperative and competitive interactions induce an increase in interbrain coupling. However, whether this interbrain coupling effect is just a reflection of inter-subject motor coordination or can also signal the type of social interaction is unknown. Here, we show that behavioral coordination and social interaction type can be distinguished according to the frequency of oscillation in which the brains are coupled. We use EEG to simultaneously measure the brain activity of pairs of subjects, while they were performing a visual cue-target task in a cooperative and competitive manner. Behavioral responses were quasi-simultaneous between subject pairs for both competitive and cooperative conditions, with faster average response times for the competitive condition. Concerning brain activity, we found increased interbrain coupling in theta band (3–7 Hz) during cooperation and competition, with stronger coupling during competitive interactions. This increase of interbrain theta coupling correlated with a decrease in reaction times of the dyads. Interestingly, we also found an increase in brain-to-brain coupling in gamma band (38–42 Hz) only during cooperative interactions. Unlike the theta coupling effect, the gamma interbrain coupling did not correlate with dyads’ reaction times. Taken together, these results suggest that theta interbrain coupling could be linked to motor coordination processes common to cooperative and competitive interactions, while gamma brain-to-brain coupling emerges as an electrophysiological marker of shared intentionality during cooperative interactions. |
format | Online Article Text |
id | pubmed-7406570 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-74065702020-08-25 Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality Barraza, Paulo Pérez, Alejandro Rodríguez, Eugenio Front Hum Neurosci Neuroscience Cooperation and competition are two ways of social interaction keys to life in society. Recent EEG-based hyperscanning studies reveal that cooperative and competitive interactions induce an increase in interbrain coupling. However, whether this interbrain coupling effect is just a reflection of inter-subject motor coordination or can also signal the type of social interaction is unknown. Here, we show that behavioral coordination and social interaction type can be distinguished according to the frequency of oscillation in which the brains are coupled. We use EEG to simultaneously measure the brain activity of pairs of subjects, while they were performing a visual cue-target task in a cooperative and competitive manner. Behavioral responses were quasi-simultaneous between subject pairs for both competitive and cooperative conditions, with faster average response times for the competitive condition. Concerning brain activity, we found increased interbrain coupling in theta band (3–7 Hz) during cooperation and competition, with stronger coupling during competitive interactions. This increase of interbrain theta coupling correlated with a decrease in reaction times of the dyads. Interestingly, we also found an increase in brain-to-brain coupling in gamma band (38–42 Hz) only during cooperative interactions. Unlike the theta coupling effect, the gamma interbrain coupling did not correlate with dyads’ reaction times. Taken together, these results suggest that theta interbrain coupling could be linked to motor coordination processes common to cooperative and competitive interactions, while gamma brain-to-brain coupling emerges as an electrophysiological marker of shared intentionality during cooperative interactions. Frontiers Media S.A. 2020-07-30 /pmc/articles/PMC7406570/ /pubmed/32848670 http://dx.doi.org/10.3389/fnhum.2020.00295 Text en Copyright © 2020 Barraza, Pérez and Rodríguez. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Barraza, Paulo Pérez, Alejandro Rodríguez, Eugenio Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality |
title | Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality |
title_full | Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality |
title_fullStr | Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality |
title_full_unstemmed | Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality |
title_short | Brain-to-Brain Coupling in the Gamma-Band as a Marker of Shared Intentionality |
title_sort | brain-to-brain coupling in the gamma-band as a marker of shared intentionality |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7406570/ https://www.ncbi.nlm.nih.gov/pubmed/32848670 http://dx.doi.org/10.3389/fnhum.2020.00295 |
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