The idea that multiple personalities can exist within the same body has long captured the Western imagination. From Three Faces of Eve to Sybil, from Pyscho to Raising Caine, from 60 Minutes to Oprah to One Life to Live, we are captivated by the fate of multiples who, divided against themselves, wreak havoc in the lives of others.
Why do we find multiple personality disorder (MPD) so fascinating? Perhaps because each of us is aware of a dividedness...