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.