Erik Erikson's 8 stages of psychosocial development describe how social and emotional development occurs throughout the human lifespan. The stages are:
1. Infancy (Trust vs. Mistrust) - Developing trust in caregivers.
2. Early Childhood (Autonomy vs. Shame and Doubt) - Gaining independence and self-control.
3. Preschool Years (Initiative vs. Guilt) - Acting on plans and distinguishing right from wrong.
4. Grammar School Years (Industry vs. Inferiority) - Developing skills and sense of competence.
5. Adolescence (Identity vs. Role Confusion) - Forming identity