It is my understanding that devices that target more precise areas to deal with specific symptoms are being developed for DBS; you might want to wait as it is being improved; one NT rather than two is now used for bilateral DBS. Ray Rayilyn Brown Past Director AZNPF Arizona Chapter National Parkinson Foundation ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn