A woman lies on an operating table during a brain surgery at the National Neurology Institute in Budapest December 15, 2012. The complex operation, called deep brain stimulation (DBS) and involves stimulation of certain areas of the human brain with high-frequency electricity, is carried out with the patient awake and communicating with the doctors during certain phases of the operation. REUTERS/Bernadett Szabo (HUNGARY – Tags: HEALTH) ORG XMIT: BUD01