Dissociable brain networks involved in development of fairness considerations: Understanding intentionality behind unfairness

► Inequity aversion motivates fairness judgments already in late childhood ► Intentionality-consideration develops gradually across adolescence ► Participants of all ages show insula and dACC activation related to norm violations ► Increasing TPJ and DLPFC activity with age related to intentionality understanding ► TPJ and DLPFC activity mediate age related changes in rejections of unfair offers