oken and dr. foote have chosen amber for an experimental dbs surgery.ll implant a new grid-like device on top of her brain in addition to the standard leads, which go deep inside the brain. by combining both, they hope to gather information from amber's brain that will not only lessen heriti ticks, but maybe some da stop them. >> so, the difference in tourette is the movement disorder isn't there all the time. you know when you get a tick, it comes on. and the patients that have ticks, they get this build-up. they call it a premonitory urge. that's what the scientists call it. and they fell that they need to move, and until they move, they don't feel better, and so, they get a sense of relief. >> between the two block, okay? >> and so, in the tick brain, there's a relationship between what we call the motor behavior, so the movement, and the lindic behavior, okay? and that's the actual systems in the brain that are encoding values for emotion. >> that sensation, the urge to tick, is what amber suffers from every day. >> it's like having 15,000 mosquito