Humans have evolved various social behaviors such as interpersonal motor synchrony, play and sport or religious ritual that bolster group cohesion and facilitate cooperation. While important for small communities, the face-to-face nature of such technologies makes them infeasible in large-scale societies where risky cooperation between anonymous individuals must be enforced through moral judgment and, ultimately, altruistic punishment. However, the unbiased applicability of group norms is often jeopardized by moral hypocrisy, i.e., the application of moral norms in favor of closer subgroup (...) members such as key socioeconomic partners and kin. We investigated whether social behaviors that facilitate close ties between people also promote moral hypocrisy that may hamper large-scale group functioning. We recruited 129 student subjects that either interacted with a confederate in the high synchrony or low synchrony conditions or performed movements alone. Subsequently, participants judged a moral transgression committed by the confederate toward another anonymous student. The results showed that highly synchronized participants judged the confederate’s transgression less harshly than the participants in the other two conditions and that this effect was mediated by the perception of group unity with the confederate. We argue that for synchrony to amplify group identity in large-scale societies, it needs to be properly integrated with morally compelling group symbols that accentuate the group’s overarching identity. Without such contextualization, synchrony may create bonded subgroups that amplify local preferences rather than impartial and wide application of moral norms. (shrink)

In the process of cultural learning, people tend to acquire mental representations and behavior from prestigious individuals over dominant ones, as prestigious individuals generously share their expertise and know-how to gain admiration, whereas dominant ones use violence, manipulation, and intimidation to enforce obedience. However, in the context of intergroup conflict, violent thoughts and behavior that are otherwise associated with dominance can hypothetically become prestigious because parochial altruists, who engage in violence against out-groups, act in the interest of their group members, (...) therefore prosocially. This shift would imply that for other in-groups, individuals behaving violently toward out-groups during intergroup conflicts become simultaneously prestigious, making them desirable cultural models to learn from. Using the mechanism of credibility enhancing displays, this article presents preliminary vignette-based evidence that violent CRED s toward out-groups during intergroup conflict increase the perceived trustworthiness of a violent cultural model. (shrink)