Listen to this short, 11 minute podcast, on deep brain stimulation treatment for intractable depression. These therapies were originally conceived of for the treatment of motion disorders, like Parkinson’s.
http://podcasts.aaas.org/science_podcast/SciencePodcast_110219b.mp3

This is billed as a treatment of last resort, after, for example, “the most effective” treatment, electroconvulsive therapy, fails.

I love it, when towards the end, the neurologist labels the psychiatrists involved “cheerleaders.” Everyone has their biases.

I am happy, nonetheless, that the researchers know to be focused on the long term, what they call “rehabilitation,” of chronic diseases likes depression.