"Nonverbal treatment methods such as art and play therapy have also been proven useful in treating DID. Art therapy seems to be a freer expression of thoughts and feelings than verbal methods. The right side of the brain is more involved with creativity and the imagination; whereas, the left side is more concerned with language. Stimulating the right hemisphere might bring up "sensorimotor and iconic" memories more readily than if the person needed to filter input through the left hemisphere"

From: http://serendip.brynmawr.edu/bb/neur...2/Kaplan2.html