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MEG signatures of long-term effects of agreement and disagreement with the majority
People often change their beliefs by succumbing to an opinion of others. Such changes are often referred to as effects of social influence. While some previous studies have focused on the reinforcement learning mechanisms of social influence or on its internalization, others have reported evidence o...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7870674/ https://www.ncbi.nlm.nih.gov/pubmed/33558577 http://dx.doi.org/10.1038/s41598-021-82670-x |
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author | Gorin, A. Klucharev, V. Ossadtchi, A. Zubarev, I. Moiseeva, V. Shestakova, A. |
author_facet | Gorin, A. Klucharev, V. Ossadtchi, A. Zubarev, I. Moiseeva, V. Shestakova, A. |
author_sort | Gorin, A. |
collection | PubMed |
description | People often change their beliefs by succumbing to an opinion of others. Such changes are often referred to as effects of social influence. While some previous studies have focused on the reinforcement learning mechanisms of social influence or on its internalization, others have reported evidence of changes in sensory processing evoked by social influence of peer groups. In this study, we used magnetoencephalographic (MEG) source imaging to further investigate the long-term effects of agreement and disagreement with the peer group. The study was composed of two sessions. During the first session, participants rated the trustworthiness of faces and subsequently learned group rating of each face. In the first session, a neural marker of an immediate mismatch between individual and group opinions was found in the posterior cingulate cortex, an area involved in conflict-monitoring and reinforcement learning. To identify the neural correlates of the long-lasting effect of the group opinion, we analysed MEG activity while participants rated faces during the second session. We found MEG traces of past disagreement or agreement with the peers at the parietal cortices 230 ms after the face onset. The neural activity of the superior parietal lobule, intraparietal sulcus, and precuneus was significantly stronger when the participant’s rating had previously differed from the ratings of the peers. The early MEG correlates of disagreement with the majority were followed by activity in the orbitofrontal cortex 320 ms after the face onset. Altogether, the results reveal the temporal dynamics of the neural mechanism of long-term effects of disagreement with the peer group: early signatures of modified face processing were followed by later markers of long-term social influence on the valuation process at the ventromedial prefrontal cortex. |
format | Online Article Text |
id | pubmed-7870674 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78706742021-02-10 MEG signatures of long-term effects of agreement and disagreement with the majority Gorin, A. Klucharev, V. Ossadtchi, A. Zubarev, I. Moiseeva, V. Shestakova, A. Sci Rep Article People often change their beliefs by succumbing to an opinion of others. Such changes are often referred to as effects of social influence. While some previous studies have focused on the reinforcement learning mechanisms of social influence or on its internalization, others have reported evidence of changes in sensory processing evoked by social influence of peer groups. In this study, we used magnetoencephalographic (MEG) source imaging to further investigate the long-term effects of agreement and disagreement with the peer group. The study was composed of two sessions. During the first session, participants rated the trustworthiness of faces and subsequently learned group rating of each face. In the first session, a neural marker of an immediate mismatch between individual and group opinions was found in the posterior cingulate cortex, an area involved in conflict-monitoring and reinforcement learning. To identify the neural correlates of the long-lasting effect of the group opinion, we analysed MEG activity while participants rated faces during the second session. We found MEG traces of past disagreement or agreement with the peers at the parietal cortices 230 ms after the face onset. The neural activity of the superior parietal lobule, intraparietal sulcus, and precuneus was significantly stronger when the participant’s rating had previously differed from the ratings of the peers. The early MEG correlates of disagreement with the majority were followed by activity in the orbitofrontal cortex 320 ms after the face onset. Altogether, the results reveal the temporal dynamics of the neural mechanism of long-term effects of disagreement with the peer group: early signatures of modified face processing were followed by later markers of long-term social influence on the valuation process at the ventromedial prefrontal cortex. Nature Publishing Group UK 2021-02-08 /pmc/articles/PMC7870674/ /pubmed/33558577 http://dx.doi.org/10.1038/s41598-021-82670-x Text en © The Author(s) 2021, corrected publication 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Gorin, A. Klucharev, V. Ossadtchi, A. Zubarev, I. Moiseeva, V. Shestakova, A. MEG signatures of long-term effects of agreement and disagreement with the majority |
title | MEG signatures of long-term effects of agreement and disagreement with the majority |
title_full | MEG signatures of long-term effects of agreement and disagreement with the majority |
title_fullStr | MEG signatures of long-term effects of agreement and disagreement with the majority |
title_full_unstemmed | MEG signatures of long-term effects of agreement and disagreement with the majority |
title_short | MEG signatures of long-term effects of agreement and disagreement with the majority |
title_sort | meg signatures of long-term effects of agreement and disagreement with the majority |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7870674/ https://www.ncbi.nlm.nih.gov/pubmed/33558577 http://dx.doi.org/10.1038/s41598-021-82670-x |
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