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Neural mechanisms of social decision-making in the primate amygdala

Chang, Steve W. C. ; Fagan, Nicholas A. ; Toda, Koji ; Utevsky, Amanda V. ; Pearson, John M. ; Platt, Michael L.

Proceedings of the National Academy of Sciences - PNAS, 2015-12, Vol.112 (52), p.16012-16017 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Neural mechanisms of social decision-making in the primate amygdala
Autor: Chang, Steve W. C. ; Fagan, Nicholas A. ; Toda, Koji ; Utevsky, Amanda V. ; Pearson, John M. ; Platt, Michael L.
Assuntos: Animal behavior ; Animal cognition ; Animals ; Basolateral Nuclear Complex - cytology ; Basolateral Nuclear Complex - drug effects ; Basolateral Nuclear Complex - physiology ; Biological Sciences ; Brain ; Choice Behavior - physiology ; Cues ; Decision making ; Decision Making - physiology ; Humans ; Macaca mulatta - physiology ; Macaca mulatta - psychology ; Markov Chains ; Models, Neurological ; Monkeys & apes ; Monte Carlo Method ; Neural Pathways - physiology ; Neurons ; Neurons - drug effects ; Neurons - physiology ; Neuropeptides ; Oxytocics - administration & dosage ; Oxytocin - administration & dosage ; Reward ; Social Behavior ; Social interaction ; Social Sciences
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2015-12, Vol.112 (52), p.16012-16017
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Author contributions: S.W.C.C. and M.L.P. designed research; S.W.C.C., K.T., and A.V.U. performed research; S.W.C.C., N.A.F., and J.M.P. analyzed data; and S.W.C.C., N.A.F., J.M.P., and M.L.P. wrote the paper.
Edited by Michael S. Gazzaniga, University of California, Santa Barbara, CA, and approved November 9, 2015 (received for review July 26, 2015)
Descrição: Social decisions require evaluation of costs and benefits to oneself and others. Long associated with emotion and vigilance, the amygdala has recently been implicated in both decision-making and social behavior. The amygdala signals reward and punishment, as well as facial expressions and the gaze of others. Amygdala damage impairs social interactions, and the social neuropeptide oxytocin (OT) influences human social decisions, in part, by altering amygdala function. Here we show in monkeys playing a modified dictator game, in which one individual can donate or withhold rewards from another, that basolateral amygdala (BLA) neurons signaled social preferences both across trials and across days. BLA neurons mirrored the value of rewards delivered to self and others when monkeys were free to choose but not when the computer made choices for them. We also found that focal infusion of OT unilaterally into BLA weakly but significantly increased both the frequency of prosocial decisions and attention to recipients for context-specific prosocial decisions, endorsing the hypothesis that OT regulates social behavior, in part, via amygdala neuromodulation. Our findings demonstrate both neurophysiological and neuroendocrinological connections between primate amygdala and social decisions.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Neural mechanisms of social decision-making in the primate amygdala

Chang, Steve W. C. ; Fagan, Nicholas A. ; Toda, Koji ; Utevsky, Amanda V. ; Pearson, John M. ; Platt, Michael L.

United States: National Academy of Sciences

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