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Choices behind the veil of ignorance in Formosan macaques

An ongoing debate regarding the evolution of morality is whether other species show precursory moral behavior. The veil of ignorance (VOI) paradigm is often used to elicit human moral judgment but has never been tested in other primates. We study the division of resources behind the VOI in Formosan...

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Detalles Bibliográficos
Autores principales: Lu, Yi-Ta, Hwang, Wei-Hsiang, Hsieh, Yi-Tsung, Ho, Tsung-Yu, Da Zhu, Jian-, Yeh, Chun-I, Huang, Chen-Ying
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9802069/
https://www.ncbi.nlm.nih.gov/pubmed/36714857
http://dx.doi.org/10.1093/pnasnexus/pgac188
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author Lu, Yi-Ta
Hwang, Wei-Hsiang
Hsieh, Yi-Tsung
Ho, Tsung-Yu
Da Zhu, Jian-
Yeh, Chun-I
Huang, Chen-Ying
author_facet Lu, Yi-Ta
Hwang, Wei-Hsiang
Hsieh, Yi-Tsung
Ho, Tsung-Yu
Da Zhu, Jian-
Yeh, Chun-I
Huang, Chen-Ying
author_sort Lu, Yi-Ta
collection PubMed
description An ongoing debate regarding the evolution of morality is whether other species show precursory moral behavior. The veil of ignorance (VOI) paradigm is often used to elicit human moral judgment but has never been tested in other primates. We study the division of resources behind the VOI in Formosan macaques. Monkeys choose the equal division more often when a conspecific is present than when it is absent, suggesting a degree of impartiality. To better understand this impartiality, we measure a monkey’s reactions to two directions of inequity: one regarding inequity to its advantage and the other to its disadvantage. We find that disadvantageous inequity aversion correlates with the degree of impartiality behind the VOI. Therefore, seemingly impartial behavior could result from a primitive negative reaction to being disadvantaged. This suggests a mechanism to explain a tendency toward impartiality.
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spelling pubmed-98020692023-01-26 Choices behind the veil of ignorance in Formosan macaques Lu, Yi-Ta Hwang, Wei-Hsiang Hsieh, Yi-Tsung Ho, Tsung-Yu Da Zhu, Jian- Yeh, Chun-I Huang, Chen-Ying PNAS Nexus Social and Political Sciences An ongoing debate regarding the evolution of morality is whether other species show precursory moral behavior. The veil of ignorance (VOI) paradigm is often used to elicit human moral judgment but has never been tested in other primates. We study the division of resources behind the VOI in Formosan macaques. Monkeys choose the equal division more often when a conspecific is present than when it is absent, suggesting a degree of impartiality. To better understand this impartiality, we measure a monkey’s reactions to two directions of inequity: one regarding inequity to its advantage and the other to its disadvantage. We find that disadvantageous inequity aversion correlates with the degree of impartiality behind the VOI. Therefore, seemingly impartial behavior could result from a primitive negative reaction to being disadvantaged. This suggests a mechanism to explain a tendency toward impartiality. Oxford University Press 2022-09-15 /pmc/articles/PMC9802069/ /pubmed/36714857 http://dx.doi.org/10.1093/pnasnexus/pgac188 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of National Academy of Sciences. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Social and Political Sciences
Lu, Yi-Ta
Hwang, Wei-Hsiang
Hsieh, Yi-Tsung
Ho, Tsung-Yu
Da Zhu, Jian-
Yeh, Chun-I
Huang, Chen-Ying
Choices behind the veil of ignorance in Formosan macaques
title Choices behind the veil of ignorance in Formosan macaques
title_full Choices behind the veil of ignorance in Formosan macaques
title_fullStr Choices behind the veil of ignorance in Formosan macaques
title_full_unstemmed Choices behind the veil of ignorance in Formosan macaques
title_short Choices behind the veil of ignorance in Formosan macaques
title_sort choices behind the veil of ignorance in formosan macaques
topic Social and Political Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9802069/
https://www.ncbi.nlm.nih.gov/pubmed/36714857
http://dx.doi.org/10.1093/pnasnexus/pgac188
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