Deep brain stimulation (DBS) has proven to be a remarkable success for the treatment of many movement disorders. The dramatic video below shows what happens to Andrew “Cyber-AJ” Johnson just seconds after he turns off his Medtronic DBS unit. AJ has Parkinson’s disease and his otherwise debilitating tremors are completely eliminated once the stimulators placed in the subthalamic nucleus (STN) of his brain kick in. The obvious question that neurohackers and transhumanists are asking, though, is: What’s so special about the subthalamic nucleus?