During these eight stages of life, Erik H proposes that ego, identity and desire are formed, thus encompassing the human life cycle. Unlike other developmental psychologists studying human development during his time, Erikson's stages of ego, identity, and desire encompass the entire cycle of human life, from birth to death. Confusion between identity and role is the fifth stage of the ego in psychologist Erik Erikson's theory. of psychosocial development. This stage occurs in adolescence between the ages of During this stage, adolescents explore their independence and develop self-esteem. Confusion between identity and role is a stage, Industry versus inferiority is the fourth stage of Erik Erikson's theory of psychosocial development, which occurs after the third stage of initiative against guilt. The fourth stage occurs during childhood, between the age of six. During the industry versus inferiority phase, a child learns new skills. Piaget divided children's cognitive development into four stages, with each stage representing a new way of thinking and understanding the world. He called them 1 sensorimotor intelligence, 2 pre-operational thinking, 3 concrete operational thinking and 4 formal operational thinking. Each stage is correlated to an age period of. An eight-stage theory of identity and psychosocial development. Erik Erikson, a German psychoanalyst strongly influenced by Sigmund Freud, explored three aspects of identity: ego identity, personal identity, personal characteristics that distinguish one person from another, social and cultural identity , all social roles. Erikson's stages of development. The eight stages of human development, according to Erik Erikson, are as follows: 1. Fundamental trust versus fundamental distrust 0- Newborns establish dependent relationships, particularly with their mothers. With them, their needs are fully satisfied.