Do We Harm Others Even if We Don't Need To?

Evolutionary explanations of the co-existence of large-scale cooperation and warfare in human societies rest on the hypothesis of parochial altruism, the view thatin-group pro-sociality and out-group anti-sociality have co-evolved. We designed an experiment that allows subjects to freely choose betw...

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Main Authors: Maria Paula eCacault, Lorenz eGoette, Rafael eLalive, Mathias eThoenig
Format: Article
Language:English
Published: Frontiers Media S.A. 2015-06-01
Series:Frontiers in Psychology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpsyg.2015.00729/full
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author Maria Paula eCacault
Lorenz eGoette
Rafael eLalive
Mathias eThoenig
author_facet Maria Paula eCacault
Lorenz eGoette
Rafael eLalive
Mathias eThoenig
author_sort Maria Paula eCacault
collection DOAJ
description Evolutionary explanations of the co-existence of large-scale cooperation and warfare in human societies rest on the hypothesis of parochial altruism, the view thatin-group pro-sociality and out-group anti-sociality have co-evolved. We designed an experiment that allows subjects to freely choose between actions that are purely pro-social, purely anti-social, or a combination of the two. We present behavioral evidence on the existence of strong aggression -- a pattern of non-strategic behaviors that are welfare-reducing for all individuals (i.e. victims and perpetrators). We also show how strong aggression serves to dynamically stabilize in-group pro-sociality.
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spelling doaj.art-fd2fd0dc0cf54166968be181cf39c48f2022-12-22T01:36:35ZengFrontiers Media S.A.Frontiers in Psychology1664-10782015-06-01610.3389/fpsyg.2015.00729131747Do We Harm Others Even if We Don't Need To?Maria Paula eCacault0Lorenz eGoette1Rafael eLalive2Mathias eThoenig3University of LausanneUniversity of LausanneUniversity of LausanneUniversity of LausanneEvolutionary explanations of the co-existence of large-scale cooperation and warfare in human societies rest on the hypothesis of parochial altruism, the view thatin-group pro-sociality and out-group anti-sociality have co-evolved. We designed an experiment that allows subjects to freely choose between actions that are purely pro-social, purely anti-social, or a combination of the two. We present behavioral evidence on the existence of strong aggression -- a pattern of non-strategic behaviors that are welfare-reducing for all individuals (i.e. victims and perpetrators). We also show how strong aggression serves to dynamically stabilize in-group pro-sociality.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2015.00729/fullexperimental testsin-group favoritismpublic goodParochial altruismout-group aggressionstrong agression
spellingShingle Maria Paula eCacault
Lorenz eGoette
Rafael eLalive
Mathias eThoenig
Do We Harm Others Even if We Don't Need To?
Frontiers in Psychology
experimental tests
in-group favoritism
public good
Parochial altruism
out-group aggression
strong agression
title Do We Harm Others Even if We Don't Need To?
title_full Do We Harm Others Even if We Don't Need To?
title_fullStr Do We Harm Others Even if We Don't Need To?
title_full_unstemmed Do We Harm Others Even if We Don't Need To?
title_short Do We Harm Others Even if We Don't Need To?
title_sort do we harm others even if we don 39 t need to
topic experimental tests
in-group favoritism
public good
Parochial altruism
out-group aggression
strong agression
url http://journal.frontiersin.org/Journal/10.3389/fpsyg.2015.00729/full
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