Harvey is diagnosed with dissociative identity disorder. his mother severely abused him from the time he was six years old. the first of his personalities developed around seven. according to his psychoanalyst, the development of separate personalities served the purpose of a. taking the pain of the abuse so that his core personality would survive b. getting harvey additional attention from family members c. providing substitute significant others to replace an unacceptable parent d. harvey to remember his mother's viciousness when he grew older