Ego integrity versus despair: In psychology, the term has been introduced by a psychologist named Erik Erikson and is considered as the last or the eighth stage in his theory of psychosocial development. This stage starts in the late adulthood period of an individual's life i.e, around sixty-five years of age and lasts through or ends at the death of the person.
During this period or stage, an individual tends to contemplate his or her accomplishments and therefore develops a sense of ego integrity if he or she sees oneself as leading a very successful life and develops despair if he or she feels of not leading a successful life.