A small 1997 study of in-patient Vietnam veterans with PTSD published in the Journal of Traumatic Stress compared the effectiveness of a single session of 15 different treatment methods administered to 25 veterans over 16 weeks. Art therapy was the only treatment method that reduced PTSD symptoms in the most severe patients. Researchers theorized that it not only provided a distraction, but it helped vets deal with traumatic memories at their own pace.
Psychiatrists already have strong theories about how art therapy works, especially as it relates to trauma treatment. Allan Schore, associate clinical professor of psychiatry and biobehavioral sciences at UCLA's School of Medicine, says that traumatic and stressful memories are stored in the right hemisphere of the brain, which processes emotions, visual and nonconscious information.The left brain controls logical thinking and verbal skills. But for therapy to be effective, "it has to get into the right brain," Schore said. Creating art is a fast way to access the right brain and the emotions stored there."Saying I'm scared and angry is one thing. Taking a crayon and scribbling on a piece of paper is a visceral way of not just saying it, but experiencing it," said Jan Oxenberg, a TV writer who tried art therapy after she was involved in a shooting during a civilian ride-along with the LAPD.While making art activates the right brain, talking about it and constructing a coherent story about the traumatic experience activates the left hemisphere as well. Integrating the two leads to healing. "What is expanded is the interconnectivity of the brain," Schore said.