Jennifer Susan McClung

TL;DR: Cross-cultural tests from 16 nations were performed to evaluate the hypothesis that the emotion of pride evolved to guide behavior to elicit valuation and respect from others, and predicted that the pride intensity for a given act or trait closely tracks the valuations of audiences.

TL;DR: Participants failed to represent out-group members as socially relevant agents not based on any personality or situational characteristics, but in reaction only to their status as “other”, indicating that group membership appears to affect cognition on a very immediate and subconscious level.

TL;DR: It is shown that shared intentionality was the mechanism driving the increase in helping between in-group players over out-groups players at a cost to themselves, which point to a probable psychological source of the variation in cooperation humans display.

TL;DR: Exogenous OT predicts helping behaviour and conversation, importantly as a function of group membership, and this effect occurs in parallel to uniquely human cognitive processes.

TL;DR: In this paper, the authors examined spontaneous mental state reference during casual conversation as a function of group membership, and found that when interacting with presumed out-group members, participants referenced their partners' mental states significantly less often than when they interacted with presumed in-group participants.