- The Neuropeptide Oxytocin Enhances Information Sharing and Group Decision Making Quality
- Scientific Reports
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- Faculty of Social and Behavioural Sciences (FMG)
Faculty of Economics and Business (FEB)
- Psychology Research Institute (PsyRes)
Amsterdam School of Economics Research Institute (ASE-RI)
Groups can make better decisions than individuals when members cooperatively exchange and integrate their uniquely held information and insights. However, under conformity pressures group members are biased towards exchanging commonly known information, and away from exchanging unique information, thus undermining group decision-making quality. At the neurobiological level, conformity associates with the neuropeptide oxytocin. A double-blind placebo controlled study found no evidence for oxytocin induced conformity. Compared to placebo groups, three-person groups whose members received intranasal oxytocin, focused more on unique information (i) and repeated this information more often (ii). These findings reveal oxytocin as a neurobiological driver of group decision-making processes.
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