Surgeons at Rambam Medical Center used deep brain stimulation on a patient with severe Obsessive–Compulsive Disorder that failed to respond to medication or psychotherapy. Four electrodes were implanted in two separate regions of the brain, handling anxiety, emotional regulation, & impulse control.

https://unitedwithisrael.org/rambam-medical-center-finds-solution-for-treatment-resistant-ocd/