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The Male Warrior Hypothesis: Testosterone-related Cooperation and Aggression in the Context of Intergroup Confict

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dc.contributor.authorMuñoz Reyes, José Antonio
dc.contributor.authorPolo, Pablo
dc.contributor.authorValenzuela, N.
dc.contributor.authorPavez, P.
dc.contributor.authorRamírez-Herrera, O.
dc.contributor.authorFigueroa, Oriana
dc.contributor.authorRodríguez-Sickert, Carlos
dc.contributor.authorDíaz, D.
dc.contributor.authorPita, M.
dc.contributor.authorMuñoz Reyes, José Antonio
dc.date.accessioned2021-08-11T21:33:28Z
dc.date.available2021-08-11T21:33:28Z
dc.date.issued2020
dc.description.abstractThe Male Warrior Hypothesis (MWH) establishes that men’s psychology has been shaped by inter-group competition to acquire and protect reproductive resources. In this context, sex-specific selective pressures would have favored cooperation with the members of one’s group in combination with hostility towards outsiders. We investigate the role of developmental testosterone, as measured indirectly through static markers of prenatal testosterone (2D:4D digit ratio) and pubertal testosterone (body musculature and facial masculinity), on both cooperation and aggressive behavior in the context of intergroup conflict among men. Supporting the MWH, our results show that the intergroup conflict scenario promotes cooperation within group members and aggression toward outgroup members. Regarding the hormonal underpinnings of this phenomenon, we find that body musculature is positively associated with aggression and cooperation, but only for cooperation when context (inter-group competition) is taken into account. Finally, we did not find evidence that the formidability of the group affected individual rates of aggression or cooperation, controlling for individual characteristicses
dc.identifier.citationScientific Reports, 2020, vol.10:375es
dc.identifier.urihttps://doi.org/10.1038/s41598-019-57259-0es
dc.identifier.urihttp://hdl.handle.net/11447/4286
dc.subjectMenes
dc.subjectSex-differenceses
dc.subjectHuman behaviour
dc.subjectSexual selection
dc.titleThe Male Warrior Hypothesis: Testosterone-related Cooperation and Aggression in the Context of Intergroup Confictes
dc.typeArticlees
dspace.entity.typePublication
relation.isAuthorOfPublicationf83125ff-276b-4faa-99b5-4edfacb6db8a
relation.isAuthorOfPublication.latestForDiscoveryf83125ff-276b-4faa-99b5-4edfacb6db8a

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