I remember doing biofeedback in 1983 when I was 11.* Seems
   similar to that but with an implant and more controls available
   than just making a beep go up and down on a computer. Good, it's
   about time. Hope it goes mainstream.
   http://singularityhub.com/2015/10/25/scientists-connect-brain-to-a-basic-tablet-paralyzed-patient-googles-with-ease/