Mind controls: Electrodes sitting on the brain's surface - health - 13 April 2011 - New Scientist

Mind controls: Electrodes sitting on the brain's surface: Could we get the best of both worlds through epidural cortical stimulation?
With this technique, rather than placing the electrodes inside the brain, they are put on its surface. So while surgery is needed, it is a safer procedure: a hole is drilled in the skull and a tape with several electrodes on it is slid over the brain's surface membrane, the dura mater.