I am thrilled to read about this study. It's a wonderful addition to similar research in the field. My own work has been in teaching children to access the power of their imagination to heal themselves and reach their full potential. I'm a Los Angeles based child educational psychologist and Associate Clinical Professor of Psychology at UCLA. In one guided imagery group I conducted a few years ago, kids were complaining of all sorts of symptoms: one had a headache, another a stomachache, and still a third boy had a stinging canker sore. So I created an imagery that helped all of them: they imagined creating a magical garden where they could grow healthy and strong and rested in a healing pond while their garden (a thinly disguised metaphor for their body) grew. Afterwards, both the headache and stomachache was gone and the canker sore didn't sting. This lead me to record a CD Creating a Magical Garden and Healing Pond that kids and parents tell me helps with all sorts of pain - physical, emotional, and spiritual. I invite you to learn about this at my website and my new book The Power of Your Child's IMagination: How to Transform Stress and Anxiety into Joy and Success (Perigee/Penguin)  at www.ImageryForKids.com