The Ph.D. thesis is focused on three problems related to deep
brain stimulation (DBS). The first topic is the anatomo –
electrophysiological correlation in bilateral  subthalamic
nucleus (STN) stimulation, or the relationship of the target
structure determined using neuroradiological techniques
compared with the results of intraoperative electrophysiology.
The second topic is the incidence and potential risk factor of
early postoperative mental changes after bilateral STN
electrodes  implantation. The third study aim is the
experimental study of the anterior thalamic nucleus (ATN)
electrode implanted in patients with refractory epilepsy
related to vascular structures.