Despite the accumulation of research on indirect reciprocity over the past 30 years and the
publication of over 100,000 related papers, there are still many issues to be addressed …

Indirect reciprocity (IR) is a key mechanism to understand cooperation among unrelated
individuals. It involves reputations and complex information processing, arising from social …

Loneliness is a painful condition associated with increased risk for premature mortality. The
formation of new, positive social relationships can alleviate feelings of loneliness, but …

INTRODUCTION Social groups play a foundational role in the behavior of many animal
species. During group interactions, an individual's behavior can affect not only the well …

Clinical evidence suggests that mindfulness meditation reduces anxiety, depression, and
stress, and improves emotion regulation due to modulation of activity in neural substrates …

We introduce a computational framework for understanding the structure and dynamics of
moral learning, with a focus on how people learn to trade off the interests and welfare of …

The intergenerational sustainability dilemma (ISD) is a situation of whether or not a person
sacrifices herself for future sustainability. To examine the individual behaviors, one-person …

Positive social interactions contribute to the sense that one's life has meaning. Enjoyment of
feelings associated through social interaction motivates humans to build social connections …

Tasks that measure correlates of prosocial decision-making share one common feature:
agents can make choices that increase the welfare of a beneficiary. However, prosocial …

In-group favoritism is the tendency for individuals to cooperate with in-group members more
strongly than with out-group members. Similar concepts have been described across …