Final answer:
The subject of this question is Erik Erikson's Eight Stages of Psychosocial Development.
Step-by-step explanation:
In psychology, the subject you are referring to is Erik Erikson's Eight Stages of Psychosocial Development.
These stages represent the different challenges individuals face throughout their lives.
The stages are: Basic Trust vs. Mistrust, Autonomy vs. Shame and Doubt, Initiative vs. Guilt, Industry vs. Inferiority, Identity vs. Role Confusion, Intimacy vs. Isolation, Generativity vs. Stagnation, and Integrity vs. Despair.