Description of Norman Bates -Hitch Psycho?

Norman Bates was abused emotionally as a child by his mother who told him that all women (except herself) are s and that is evil. Later in Norman's life he murders his mother and her lover. To make up for his own guilt he develops Dissociative identity disorder (a good example of this would be Two-Face from the movie Batman Forever) and umes his mothers personality,plus he keeps his mothers corpse in her house,which he had inherited. He had literally become his mother, going so far as to dress up like her with a wig and dress and act like her. Now as to how his dual identity fools us: throughout the movie Psycho it is established that Mrs. Bates is the killer however as it turns out, it is actually Norman AS his mother in the wig and dress we talked about earlier.