This is the final stage in Erik Erikson's theory of psychosocial development, typically occurring during late adulthood. Individuals reflect on their lives and either feel satisfaction from a life well-lived (integrity) or regret over missed opportunities and failures (despair).
This concept is rooted in Erikson's psychosocial development theory, specifically the eighth and final stage, which emphasizes reflection on one's life.
Longitudinal studies support a critical period in late adulthood for reflecting on life achievements, with successful resolution leading to wisdom and satisfaction, while failure results in regret and despair.