Face the hierarchy: ERP and oscillatory brain responses in social rank processing.

Recognition of social hierarchy is a key feature that helps us navigate through our complex social environment. Neuroimaging studies have identified brain structures involved in the processing of hierarchical stimuli but the precise temporal dynamics of brain activity associated with such processing...

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Main Authors: Audrey Breton, Karim Jerbi, Marie-Anne Henaff, Anne Cheylus, Jean-Yves Baudouin, Christina Schmitz, Pierre Krolak-Salmon, Jean-Baptiste Van der Henst
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3951356?pdf=render
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author Audrey Breton
Karim Jerbi
Marie-Anne Henaff
Anne Cheylus
Jean-Yves Baudouin
Christina Schmitz
Pierre Krolak-Salmon
Jean-Baptiste Van der Henst
author_facet Audrey Breton
Karim Jerbi
Marie-Anne Henaff
Anne Cheylus
Jean-Yves Baudouin
Christina Schmitz
Pierre Krolak-Salmon
Jean-Baptiste Van der Henst
author_sort Audrey Breton
collection DOAJ
description Recognition of social hierarchy is a key feature that helps us navigate through our complex social environment. Neuroimaging studies have identified brain structures involved in the processing of hierarchical stimuli but the precise temporal dynamics of brain activity associated with such processing remains largely unknown. Here, we used electroencephalography to examine the effect of social hierarchy on neural responses elicited by faces. In contrast to previous studies, the key manipulation was that a hierarchical context was constructed, not by varying facial expressions, but by presenting neutral-expression faces in a game setting. Once the performance-based hierarchy was established, participants were presented with high-rank, middle-rank and low-rank player faces and had to evaluate the rank of each face with respect to their own position. Both event-related potentials and task-related oscillatory activity were investigated. Three main findings emerge from the study. First, the experimental manipulation had no effect on the early N170 component, which may suggest that hierarchy did not modulate the structural encoding of neutral-expression faces. Second, hierarchy significantly modulated the amplitude of the late positive potential (LPP) within a 400-700 ms time-window, with more a prominent LPP occurring when the participants processed the face of the highest-rank player. Third, high-rank faces were associated with the highest reduction of alpha power. Taken together these findings provide novel electrophysiological evidence for enhanced allocation of attentional resource in the presence of high-rank faces. At a broader level, this study brings new insights into the neural processing underlying social categorization.
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spelling doaj.art-5bd8165fa17b49daa2ecfb4972d3c5f62022-12-21T17:26:49ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0193e9145110.1371/journal.pone.0091451Face the hierarchy: ERP and oscillatory brain responses in social rank processing.Audrey BretonKarim JerbiMarie-Anne HenaffAnne CheylusJean-Yves BaudouinChristina SchmitzPierre Krolak-SalmonJean-Baptiste Van der HenstRecognition of social hierarchy is a key feature that helps us navigate through our complex social environment. Neuroimaging studies have identified brain structures involved in the processing of hierarchical stimuli but the precise temporal dynamics of brain activity associated with such processing remains largely unknown. Here, we used electroencephalography to examine the effect of social hierarchy on neural responses elicited by faces. In contrast to previous studies, the key manipulation was that a hierarchical context was constructed, not by varying facial expressions, but by presenting neutral-expression faces in a game setting. Once the performance-based hierarchy was established, participants were presented with high-rank, middle-rank and low-rank player faces and had to evaluate the rank of each face with respect to their own position. Both event-related potentials and task-related oscillatory activity were investigated. Three main findings emerge from the study. First, the experimental manipulation had no effect on the early N170 component, which may suggest that hierarchy did not modulate the structural encoding of neutral-expression faces. Second, hierarchy significantly modulated the amplitude of the late positive potential (LPP) within a 400-700 ms time-window, with more a prominent LPP occurring when the participants processed the face of the highest-rank player. Third, high-rank faces were associated with the highest reduction of alpha power. Taken together these findings provide novel electrophysiological evidence for enhanced allocation of attentional resource in the presence of high-rank faces. At a broader level, this study brings new insights into the neural processing underlying social categorization.http://europepmc.org/articles/PMC3951356?pdf=render
spellingShingle Audrey Breton
Karim Jerbi
Marie-Anne Henaff
Anne Cheylus
Jean-Yves Baudouin
Christina Schmitz
Pierre Krolak-Salmon
Jean-Baptiste Van der Henst
Face the hierarchy: ERP and oscillatory brain responses in social rank processing.
PLoS ONE
title Face the hierarchy: ERP and oscillatory brain responses in social rank processing.
title_full Face the hierarchy: ERP and oscillatory brain responses in social rank processing.
title_fullStr Face the hierarchy: ERP and oscillatory brain responses in social rank processing.
title_full_unstemmed Face the hierarchy: ERP and oscillatory brain responses in social rank processing.
title_short Face the hierarchy: ERP and oscillatory brain responses in social rank processing.
title_sort face the hierarchy erp and oscillatory brain responses in social rank processing
url http://europepmc.org/articles/PMC3951356?pdf=render
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