Perhaps the biggest advance in DBS systems since they were first developed has just been reported by a group of researchers working in the movement disorders group at Oxford University. By recording activity with what is essentially a Brain Computer Interface (BCI), the researchers were able to close the stimulation loop with direct feedback from the subthalamic nucleus. The ability to incorporate meaningful data from the implant user's brain into the moment-to-moment control of the stimulation puts the one-size-fits-all DBS system on the fast track to obsolescence.