"Ever wonder if gaming can be used as a therapy for young people with depression?
Find out how University of Auckland researcher, Dr Sally Merry, and her team of researchers and games developers have created a video game to treat youth depression. Sally hopes the therapy will reach out to depressed youth, 75% of whom would normally receive no treatment."

The British Medical Journal has just published an article about this at 

http://www.bmj.com/content/344/bmj.e2598.

To get information about the software Sparx, go to http://www.sparx.org.nz.