fMRI Repetition Suppression During Generalized Social Categorization

Abstract Correctly identifying friends and foes is integral to successful group living. Here, we use repetition suppression to examine the neural circuitry underlying generalized group categorization—the process of categorizing in-group and out-group members across multiple social categories. Partic...

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Autores principales:	Tatiana Lau, Mina Cikara
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/603c42816afd420aa1dbd7f3cccf0f1b
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spelling	oai:doaj.org-article:603c42816afd420aa1dbd7f3cccf0f1b2021-12-02T15:05:30ZfMRI Repetition Suppression During Generalized Social Categorization10.1038/s41598-017-04115-82045-2322https://doaj.org/article/603c42816afd420aa1dbd7f3cccf0f1b2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04115-8https://doaj.org/toc/2045-2322Abstract Correctly identifying friends and foes is integral to successful group living. Here, we use repetition suppression to examine the neural circuitry underlying generalized group categorization—the process of categorizing in-group and out-group members across multiple social categories. Participants assigned to an arbitrary team (i.e., Eagles or Rattlers) underwent fMRI while categorizing political and arbitrary in-group and out-group members. We found that frontoparietal control network exhibited repetition suppression in response to “identical in-group” (Democrat-Democrat or Eagles-Eagles) and “different in-group” (Eagles-Democrat or Democrat-Eagles) trials relative to “out-group/in-group trials” (Republican-Democrat or Rattler-Eagles). Specifically, the repetition suppression contrast map included bilateral superior parietal lobule, bilateral dorsolateral prefrontal cortex (DLPFC), and bilateral middle temporal gyrus. Participants who reported an increased tendency to join and value their social groups exhibited decreased repetition suppression in bilateral DLPFC. Comparison of our whole-brain repetition suppression map with an independently identified map of frontoparietal control network revealed 34.3% overlap. Social categorization requires recognizing both a target’s group membership but also the target’s orientation toward one’s self. Fittingly, we find that generalized social categorization engages a network that acts as a functional bridge between dorsal attentional (exogenously-oriented) and default mode (internally-oriented) networks.Tatiana LauMina CikaraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tatiana Lau Mina Cikara fMRI Repetition Suppression During Generalized Social Categorization
description	Abstract Correctly identifying friends and foes is integral to successful group living. Here, we use repetition suppression to examine the neural circuitry underlying generalized group categorization—the process of categorizing in-group and out-group members across multiple social categories. Participants assigned to an arbitrary team (i.e., Eagles or Rattlers) underwent fMRI while categorizing political and arbitrary in-group and out-group members. We found that frontoparietal control network exhibited repetition suppression in response to “identical in-group” (Democrat-Democrat or Eagles-Eagles) and “different in-group” (Eagles-Democrat or Democrat-Eagles) trials relative to “out-group/in-group trials” (Republican-Democrat or Rattler-Eagles). Specifically, the repetition suppression contrast map included bilateral superior parietal lobule, bilateral dorsolateral prefrontal cortex (DLPFC), and bilateral middle temporal gyrus. Participants who reported an increased tendency to join and value their social groups exhibited decreased repetition suppression in bilateral DLPFC. Comparison of our whole-brain repetition suppression map with an independently identified map of frontoparietal control network revealed 34.3% overlap. Social categorization requires recognizing both a target’s group membership but also the target’s orientation toward one’s self. Fittingly, we find that generalized social categorization engages a network that acts as a functional bridge between dorsal attentional (exogenously-oriented) and default mode (internally-oriented) networks.
format	article
author	Tatiana Lau Mina Cikara
author_facet	Tatiana Lau Mina Cikara
author_sort	Tatiana Lau
title	fMRI Repetition Suppression During Generalized Social Categorization
title_short	fMRI Repetition Suppression During Generalized Social Categorization
title_full	fMRI Repetition Suppression During Generalized Social Categorization
title_fullStr	fMRI Repetition Suppression During Generalized Social Categorization
title_full_unstemmed	fMRI Repetition Suppression During Generalized Social Categorization
title_sort	fmri repetition suppression during generalized social categorization
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/603c42816afd420aa1dbd7f3cccf0f1b
work_keys_str_mv	AT tatianalau fmrirepetitionsuppressionduringgeneralizedsocialcategorization AT minacikara fmrirepetitionsuppressionduringgeneralizedsocialcategorization
_version_	1718388833253326848

fMRI Repetition Suppression During Generalized Social Categorization

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