An interesting article, but certainly not a new theory. Dr. Kay Jamison is one of the foremost authorities on manic-depressive illness - and also suffers from it.

She wrote a memoir, An Unquiet Mind (http://www.amazon.com/An-Unquiet-Mind-Memoir-Madness/dp/0679...), and a non-fiction work of research, “Touched with Fire: Manic-Depressive Illness and the Artistic Temperament” (http://www.amazon.com/Touched-Fire-Manic-Depressive-Artistic...).