1, infancy (1-2 years old): When we are babies, we will ask ourselves whether we can trust the world and whether it is safe. If we learn to trust someone at this stage, we can trust others in the future. But if we experience fear, we will develop a character of doubt and distrust. At this time, the important person who affects us is our mother.

2. Early childhood (2-4 years old): During this period, children have mastered many skills, such as crawling, walking and talking. More importantly, they learn how to persist or give up, that is, children begin to "learn" what to do or not to do.

3. Preschool (4 ~ 7 years old): During this period, if children are encouraged to take the initiative to explore, they will form initiative and lay the foundation for him to become a responsible and creative person in the future.

4. School age (7 ~ 12 years old): All children at this stage should receive education at school. School is a place to train children to adapt to society and master the knowledge and skills necessary for future life.

5. Adolescence (12 ~ 18 years old): On the one hand, the upsurge of teenagers' instinctive impulse will bring problems, on the other hand, it is more important that teenagers are troubled and confused when facing new social requirements and social conflicts.

6. Early adulthood (18 ~ 25 years old): Only young people with a strong sense of self-identity dare to take risks in intimate relationships with others.

7. Adulthood (25-50 years old): When a person has successfully passed the period of self-identity, he will live a happy and full life in his later years, have children and care about the reproduction and upbringing of future generations.

8. Maturity (over 50 years old): Due to the aging process, the physical strength, mental health and health status of the elderly are getting worse and worse, and corresponding adjustments and adaptations must be made, so it is called the psychological conflict between self-adjustment and despair.

Extended data:

The order of the eight stages of life is determined by heredity, but the success of each stage is determined by the environment, so this theory can be called "psychological-social" stage theory. Every stage cannot be ignored.

His theory of lifelong development of personality provides theoretical basis and educational content for education at different ages. Educational mistakes at any age will hinder a person's lifelong development. Also tell everyone why you have become like this, which are positive and which are negative, and at which age, give you a basis for reflection.

Baidu Encyclopedia-Eriksson's Eight Stages Theory of Life Development