Erik Erikson (1902-1994) was a psychoanalyst who was particularly interested in the way that a child’s personality develops. He divided development into 8 ‘ages’ or stages that children need to progress through to become self-fulfilled adults. Like many other theorists Erikson defined each stage by a conflict that need to be resolved. Erikson’s theory focuses on conflict between a positive and a negative emotion and lasted from birth right through to the end of life. His theory also put society and a person’s relationships with others at the centre of their development.