Dr. Mayberg gives an interview about the results of her latest study of deep brain stimulation:
Helen Mayberg: These new results from Emory, which were funded in part by the Dana Foundation, replicate and extend the findings from our proof-of-principle pilot study performed in Toronto.[ii] At Emory, the work has evolved to include patients with bipolar depression and a one-month sham stimulation period, with the same target region (Area 25, the subcallosal cingulate). Importantly, about 60 percent of the combined 37 research patients studied in Toronto and Atlanta thus far—some of whom are now more than 6 years post-implantation— continue to show sustained antidepressant effects with continued stimulation[iii]. Though the total number of patients is still small, we are encouraged by these results. http://www.dana.org/media/detail.aspx?id=35782
The results are deemed positive, more research is in process and perhaps a better understanding of how the stimulation works in the brain might lead to more viable treatments.