Press report on the second patient to get DBS for obesity in the US, read it here. Personally, I am more than a little bit wary about this development ....
Poe was awake during the three-hour surgery, in which wires carrying an electrical impulse were inserted into her brain in the region where the stomach is controlled, and linked to two pacemaker devices implanted in her chest. (emphasis added)
The neurosurgeon is quoted as saying:
"This is a frontier of medicine...to be able to generate tiny pulses of electricity in these deep nuclei of the brain, and to see what effect they may have on behavior, including in this case the behavior of eating and the issue of uncontrolled appetite," he said