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Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study
Fairness is a hallmark of humans' ability to maintain cooperative relationships with large numbers of unrelated others. It influences many aspects of daily life, from how people share their resources with partners to how policymakers shape income distribution policy. The right temporoparietal j...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9892459/ https://www.ncbi.nlm.nih.gov/pubmed/36744103 http://dx.doi.org/10.3389/fnbeh.2022.1047593 |
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author | Wu, Shijing Cai, Shenggang Dong, Zhiqiang Zhang, Hanqi |
author_facet | Wu, Shijing Cai, Shenggang Dong, Zhiqiang Zhang, Hanqi |
author_sort | Wu, Shijing |
collection | PubMed |
description | Fairness is a hallmark of humans' ability to maintain cooperative relationships with large numbers of unrelated others. It influences many aspects of daily life, from how people share their resources with partners to how policymakers shape income distribution policy. The right temporoparietal junction (rTPJ) is a hub of the mentalizing network and it has been proposed to play a key role in guiding human reciprocal behavior; however, its precise functional contribution to fair behavior in situations of advantageous and disadvantageous inequity remains unclear. The purpose of this study was to clarify the role of the rTPJ in relation to fair behavior in situations of advantageous and disadvantageous inequity by modulating the activation of the rTPJ through transcranial direct current stimulation (tDCS). Anodal tDCS at 1.5 mA over the primary visual cortex (VC) or rTPJ was performed and participants subsequently played a binary-choice version of the Dictator Game. We found that anodal tDCS over the rTPJ increased the participants' equity choices in the disadvantageous inequity situation but not in the advantageous inequity situation. The tDCS effect is moderated by sex and, in particular, the tDCS effect increases female equity choices. The results suggest that the rTPJ plays a distinct role in inequity aversion in these two types of inequity situations. |
format | Online Article Text |
id | pubmed-9892459 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-98924592023-02-03 Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study Wu, Shijing Cai, Shenggang Dong, Zhiqiang Zhang, Hanqi Front Behav Neurosci Behavioral Neuroscience Fairness is a hallmark of humans' ability to maintain cooperative relationships with large numbers of unrelated others. It influences many aspects of daily life, from how people share their resources with partners to how policymakers shape income distribution policy. The right temporoparietal junction (rTPJ) is a hub of the mentalizing network and it has been proposed to play a key role in guiding human reciprocal behavior; however, its precise functional contribution to fair behavior in situations of advantageous and disadvantageous inequity remains unclear. The purpose of this study was to clarify the role of the rTPJ in relation to fair behavior in situations of advantageous and disadvantageous inequity by modulating the activation of the rTPJ through transcranial direct current stimulation (tDCS). Anodal tDCS at 1.5 mA over the primary visual cortex (VC) or rTPJ was performed and participants subsequently played a binary-choice version of the Dictator Game. We found that anodal tDCS over the rTPJ increased the participants' equity choices in the disadvantageous inequity situation but not in the advantageous inequity situation. The tDCS effect is moderated by sex and, in particular, the tDCS effect increases female equity choices. The results suggest that the rTPJ plays a distinct role in inequity aversion in these two types of inequity situations. Frontiers Media S.A. 2023-01-19 /pmc/articles/PMC9892459/ /pubmed/36744103 http://dx.doi.org/10.3389/fnbeh.2022.1047593 Text en Copyright © 2023 Wu, Cai, Dong and Zhang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Behavioral Neuroscience Wu, Shijing Cai, Shenggang Dong, Zhiqiang Zhang, Hanqi Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study |
title | Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study |
title_full | Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study |
title_fullStr | Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study |
title_full_unstemmed | Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study |
title_short | Distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: A tDCS study |
title_sort | distinct role of the right temporoparietal junction in advantageous and disadvantageous inequity: a tdcs study |
topic | Behavioral Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9892459/ https://www.ncbi.nlm.nih.gov/pubmed/36744103 http://dx.doi.org/10.3389/fnbeh.2022.1047593 |
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