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Neuropeptide Oxytocin Regulates Parochial Altruism in Intergroup Conflict Among Humans
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Neuropeptide Oxytocin Regulates Parochial Altruism in Intergroup Conflict Among Humans
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Journal Article
Neuropeptide Oxytocin Regulates Parochial Altruism in Intergroup Conflict Among Humans
2010
Overview
Humans regulate intergroup conflict through parochial altruism; they self-sacrifice to contribute to in-group welfare and to aggress against competing out-groups. Parochial altruism has distinct survival functions, and the brain may have evolved to sustain and promote in-group cohesion and effectiveness and to ward off threatening out-groups. Here, we have linked oxytocin, a neuropeptide produced in the hypothalamus, to the regulation of intergroup conflict. In three experiments using double-blind placebo-controlled designs, male participants self-administered oxytocin or placebo and made decisions with financial consequences to themselves, their in-group, and a competing out-group. Results showed that oxytocin drives a \"tend and defend\" response in that it promoted in-group trust and cooperation, and defensive, but not offensive, aggression toward competing out-groups.
Publisher
American Association for the Advancement of Science,The American Association for the Advancement of Science
Subject
/ Altruism
/ Biological and medical sciences
/ Brain
/ cohesion
/ Conflict
/ Fundamental and applied biological sciences. Psychology
/ Humans
/ Male
/ males
/ Neurotransmission and behavior
/ oxytocin
/ Oxytocin - administration & dosage
/ Peptides
/ Placebos
/ Psychology. Psychoanalysis. Psychiatry
/ Psychology. Psychophysiology
/ Social interactions. Communication. Group processes
/ Trust
