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The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons

George Zacharopoulos Orcid Logo, Katharina Ohmann, Niklas Ihssen, Gayannee Kedia, Thomas Mussweiler, David E.J. Linden

Social Neuroscience, Pages: 1 - 11

Swansea University Author: George Zacharopoulos Orcid Logo

  • Accepted Manuscript under embargo until: 28th August 2024

Abstract

The distance effect states that the closer two compared magnitudes (e.g., two numbers, physical attractiveness in two faces), the more difficult the comparison, and the greater the activity of the frontoparietal control network. However, it is unclear whether this network is also recruited to the sa...

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Published in: Social Neuroscience
ISSN: 1747-0919 1747-0927
Published: Informa UK Limited 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa64067
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first_indexed 2023-08-11T10:56:34Z
last_indexed 2023-08-11T10:56:34Z
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spelling v2 64067 2023-08-11 The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons 7abcfe5e6fd29d20e2c53eff9a4098d1 0000-0003-0574-866X George Zacharopoulos George Zacharopoulos true false 2023-08-11 HPS The distance effect states that the closer two compared magnitudes (e.g., two numbers, physical attractiveness in two faces), the more difficult the comparison, and the greater the activity of the frontoparietal control network. However, it is unclear whether this network is also recruited to the same extent when we perform ingroup and outgroup beauty comparisons and whether the activation of these networks is tracked by interindividual variation in the perceptions we hold about an outgroup. We recorded brain activity with fMRI, where participants compared the beauty of two women ostensibly either from their ingroup or from an outgroup. Low-distance conditions produced longer response times than the high-distance conditions, and this was found in both the ingroup and outgroup conditions. However, our neuroimaging analyses revealed that the left IFG/anterior insula showed the classic distance effect only during ingroup processing but not during outgroup processing. Notably, interaction-specific activity within the left IFG/anterior insula was related to perceptions of outgroup homogeneity assessed via a questionnaire. This set of findings reveals the dynamic role of the prefrontal cortex and its interplay with perceptions of outgroup homogeneity in shaping ingroup and outgroup decision-making. Journal Article Social Neuroscience 1 11 Informa UK Limited 1747-0919 1747-0927 IFG/Anterior insula, beauty comparisons, outgroup homogeneity 28 8 2023 2023-08-28 10.1080/17470919.2023.2242098 http://dx.doi.org/10.1080/17470919.2023.2242098 COLLEGE NANME Psychology COLLEGE CODE HPS Swansea University Other 2023-10-31T10:55:20.6056285 2023-08-11T11:54:39.6905878 Faculty of Medicine, Health and Life Sciences School of Psychology George Zacharopoulos 0000-0003-0574-866X 1 Katharina Ohmann 2 Niklas Ihssen 3 Gayannee Kedia 4 Thomas Mussweiler 5 David E.J. Linden 6 Under embargo Under embargo 2023-10-31T10:31:47.9829454 Output 536197 application/vnd.openxmlformats-officedocument.wordprocessingml.document Accepted Manuscript true 2024-08-28T00:00:00.0000000 true eng
title The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
spellingShingle The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
George Zacharopoulos
title_short The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
title_full The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
title_fullStr The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
title_full_unstemmed The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
title_sort The role of outgroup homogeneity and the neurodynamics of the frontal cortex during beauty comparisons
author_id_str_mv 7abcfe5e6fd29d20e2c53eff9a4098d1
author_id_fullname_str_mv 7abcfe5e6fd29d20e2c53eff9a4098d1_***_George Zacharopoulos
author George Zacharopoulos
author2 George Zacharopoulos
Katharina Ohmann
Niklas Ihssen
Gayannee Kedia
Thomas Mussweiler
David E.J. Linden
format Journal article
container_title Social Neuroscience
container_start_page 1
publishDate 2023
institution Swansea University
issn 1747-0919
1747-0927
doi_str_mv 10.1080/17470919.2023.2242098
publisher Informa UK Limited
college_str Faculty of Medicine, Health and Life Sciences
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hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
url http://dx.doi.org/10.1080/17470919.2023.2242098
document_store_str 0
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description The distance effect states that the closer two compared magnitudes (e.g., two numbers, physical attractiveness in two faces), the more difficult the comparison, and the greater the activity of the frontoparietal control network. However, it is unclear whether this network is also recruited to the same extent when we perform ingroup and outgroup beauty comparisons and whether the activation of these networks is tracked by interindividual variation in the perceptions we hold about an outgroup. We recorded brain activity with fMRI, where participants compared the beauty of two women ostensibly either from their ingroup or from an outgroup. Low-distance conditions produced longer response times than the high-distance conditions, and this was found in both the ingroup and outgroup conditions. However, our neuroimaging analyses revealed that the left IFG/anterior insula showed the classic distance effect only during ingroup processing but not during outgroup processing. Notably, interaction-specific activity within the left IFG/anterior insula was related to perceptions of outgroup homogeneity assessed via a questionnaire. This set of findings reveals the dynamic role of the prefrontal cortex and its interplay with perceptions of outgroup homogeneity in shaping ingroup and outgroup decision-making.
published_date 2023-08-28T10:55:19Z
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