Sigmund Freud was a neurologist an psychoanalyst who tried to help adults with their troubles. He talked with adults about when they were children and anything that happened during that time. Freud focused on the unconscious mind. This is the part of the mind that a person is not able to know about directly. Freud thought that the unconscious mind was important in how people think and feel. The way people think and feel can affect how they act. Freud’s ideas lead him to make his psychosexual theory. The psychosexual theory focuses on how a child’s wants are controlled in early years and the effect it has when the child becomes an adult.