Humans are an intensely social species, frequently performing costly behaviors that benefit
others. Efforts to solve the evolutionary puzzle of altruism have a lengthy history, and recent …

Previous research has reported that autistic adults do not manage their reputation,
purportedly due to problems with theory of mind [I zuma, M atsumoto, C amerer, & A dolphs] …

Being able to manage reputation is an important social skill, but it is unclear whether autistic
children can manage reputation. This study investigated whether 33 autistic children …

Understanding persistence and changes in prosociality across the life span is fundamental
to inform theory and practice. As life expectancy increases and pressing societal challenges …

As a contribution to the more general discussion on causes of language endangerment and
death, we describe the language ecologies of four related languages (Bà Mambila …

Other people greatly influence behaviour–a phenomenon known as social influence. One
reason people change their behaviour when others are present is to manage their …

Abstract ENGLISH SUMMARY: Intergroup contact has been found to be one of the most
effective ways of reducing prejudice (Allport, 1954; Pettigrew & Tropp, 2006) and its effects …

Social identity theory (SIT) suggests that perceived identity difference between groups
predicts to intergroup conflict, including interstate conflict. Contact theory suggests that …

From small-scale food-sharing among hunter-gatherers to large-scale institutions in modern
industrial societies, cooperation is central to human success. This thesis focuses on the …

Cooperation in humans shows an in-group bias, with individuals more likely to benefit
members of their own in-group than members of other out-groups. This thesis explores the …