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Shared neural representations and temporal segmentation of political content predict ideological similarity
Despite receiving the same sensory input, opposing partisans often interpret political content in disparate ways. Jointly analyzing controlled and naturalistic functional magnetic resonance imaging data, we uncover the neurobiological mechanisms explaining how these divergent political viewpoints ar...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9891706/ https://www.ncbi.nlm.nih.gov/pubmed/36724226 http://dx.doi.org/10.1126/sciadv.abq5920 |
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author | de Bruin, Daantje van Baar, Jeroen M. Rodríguez, Pedro L. FeldmanHall, Oriel |
author_facet | de Bruin, Daantje van Baar, Jeroen M. Rodríguez, Pedro L. FeldmanHall, Oriel |
author_sort | de Bruin, Daantje |
collection | PubMed |
description | Despite receiving the same sensory input, opposing partisans often interpret political content in disparate ways. Jointly analyzing controlled and naturalistic functional magnetic resonance imaging data, we uncover the neurobiological mechanisms explaining how these divergent political viewpoints arise. Individuals who share an ideology have more similar neural representations of political words, experience greater neural synchrony during naturalistic political content, and temporally segment real-world information into the same meaningful units. In the striatum and amygdala, increasing intersubject similarity in neural representations of political concepts during a word reading task predicts enhanced synchronization of blood oxygen level–dependent time courses when viewing real-time, inflammatory political videos, revealing that polarization can arise from differences in the brain’s affective valuations of political concepts. Together, this research shows that political ideology is shaped by semantic representations of political concepts processed in an environment free of any polarizing agenda and that these representations bias how real-world political information is construed into a polarized perspective. |
format | Online Article Text |
id | pubmed-9891706 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-98917062023-02-08 Shared neural representations and temporal segmentation of political content predict ideological similarity de Bruin, Daantje van Baar, Jeroen M. Rodríguez, Pedro L. FeldmanHall, Oriel Sci Adv Neuroscience Despite receiving the same sensory input, opposing partisans often interpret political content in disparate ways. Jointly analyzing controlled and naturalistic functional magnetic resonance imaging data, we uncover the neurobiological mechanisms explaining how these divergent political viewpoints arise. Individuals who share an ideology have more similar neural representations of political words, experience greater neural synchrony during naturalistic political content, and temporally segment real-world information into the same meaningful units. In the striatum and amygdala, increasing intersubject similarity in neural representations of political concepts during a word reading task predicts enhanced synchronization of blood oxygen level–dependent time courses when viewing real-time, inflammatory political videos, revealing that polarization can arise from differences in the brain’s affective valuations of political concepts. Together, this research shows that political ideology is shaped by semantic representations of political concepts processed in an environment free of any polarizing agenda and that these representations bias how real-world political information is construed into a polarized perspective. American Association for the Advancement of Science 2023-02-01 /pmc/articles/PMC9891706/ /pubmed/36724226 http://dx.doi.org/10.1126/sciadv.abq5920 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Neuroscience de Bruin, Daantje van Baar, Jeroen M. Rodríguez, Pedro L. FeldmanHall, Oriel Shared neural representations and temporal segmentation of political content predict ideological similarity |
title | Shared neural representations and temporal segmentation of political content predict ideological similarity |
title_full | Shared neural representations and temporal segmentation of political content predict ideological similarity |
title_fullStr | Shared neural representations and temporal segmentation of political content predict ideological similarity |
title_full_unstemmed | Shared neural representations and temporal segmentation of political content predict ideological similarity |
title_short | Shared neural representations and temporal segmentation of political content predict ideological similarity |
title_sort | shared neural representations and temporal segmentation of political content predict ideological similarity |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9891706/ https://www.ncbi.nlm.nih.gov/pubmed/36724226 http://dx.doi.org/10.1126/sciadv.abq5920 |
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