On three or four occasions in his career as a psychoanalytic theoretician. Freud changed his mind on fundamental issues. Setting forth in rich detail Freud's new theory of anxiety. Inhibitions, Symptoms and Anxiety (1926) is evidence for one of them. In rethinking his earlier work on the subject, Freud saw several types of anxiety at work in the mind and here argues that anxiety causes repression, rather than the other way around.