Which author first put forward the theme "identity crisis" in the history of literature, and what was its development through literature? Was it John Updike in his Rabbit novels, like Rabbit, Run?
Psychologist Erik Erikson coined the term, "identity crisis." For Erikson, consciousness is formed as a result of psychosocial and psychobiological development. The typical developmental stage for identity formation is adolescence. It is a period when Identity Cohesion versus Role Confusion is at stake. If a psychological or psychosocial crisis occurs and identity cohesion is not achieved, then the person is said to be in "identity crisis": the person has unresolved crisis in the conceptualization of basic identity, basic ego, basic "I" awareness.