https://en.wikipedia.org/wiki/Deep_brain_stimulation https://en.wikipedia.org/wiki/Vagus_nerve_stimulation
Vagus nerve stimulation doesn't seem to be any better:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990624/
https://en.wikipedia.org/wiki/Deep_brain_stimulation https://en.wikipedia.org/wiki/Vagus_nerve_stimulation
Vagus nerve stimulation doesn't seem to be any better:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990624/