Producing and understanding prosocial actions in early childhood.

Early prosocial development has become a topic of great interest in recent years as experimental studies have provided evidence that instances of prosocial action can already be found in the second year of life. In this contribution, we review the recent literature on young children's production of prosocial actions, in particular helping, sharing, and comforting, and their understanding of others' prosocial behavior. We summarize the novel insights gained by recent studies and point to directions for future studies. Overall, we suggest that while the field consists of considerable knowledge about the developmental timeline of prosocial behavior, more research is needed to examine and better understand underlying social-cognitive mechanisms.