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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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-04115-8 |
| _version_ | 1818345143164469248 |
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| author | Tatiana Lau Mina Cikara |
| author_facet | Tatiana Lau Mina Cikara |
| author_sort | Tatiana Lau |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-13T16:57:41Z |
| format | Article |
| id | doaj.art-603c42816afd420aa1dbd7f3cccf0f1b |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-13T16:57:41Z |
| publishDate | 2017-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-603c42816afd420aa1dbd7f3cccf0f1b2022-12-21T23:37:53ZengNature PortfolioScientific Reports2045-23222017-06-017111010.1038/s41598-017-04115-8fMRI Repetition Suppression During Generalized Social CategorizationTatiana Lau0Mina Cikara1Department of Psychology, Harvard UniversityDepartment of Psychology, Harvard UniversityAbstract 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.https://doi.org/10.1038/s41598-017-04115-8 |
| spellingShingle | Tatiana Lau Mina Cikara fMRI Repetition Suppression During Generalized Social Categorization Scientific Reports |
| title | 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_short | fMRI Repetition Suppression During Generalized Social Categorization |
| title_sort | fmri repetition suppression during generalized social categorization |
| url | https://doi.org/10.1038/s41598-017-04115-8 |
| work_keys_str_mv | AT tatianalau fmrirepetitionsuppressionduringgeneralizedsocialcategorization AT minacikara fmrirepetitionsuppressionduringgeneralizedsocialcategorization |