The participants in the study are patients who undergo surgery to damaged nerve transmission and processing system in the nervous system as part of the routine clinical treatment that will not be affected by the proposed study. Patients who are candidates for procedures are referred from all over the country and undergo a multidisciplinary evaluation in the framework of the Palliative Pain Management Clinic, which operates exclusively in Israel at the Sourasky Medical Center in Tel Aviv.

The participants in the study are patients who undergo surgery to damaged nerve transmission and processing system in the nervous system as part of the routine clinical treatment that will not be affected by the proposed study. Patients who are candidates for procedures are referred from all over the country and undergo a multidisciplinary evaluation in the framework of the Palliative Pain Management Clinic, which operates exclusively in Israel at the Sourasky Medical Center in Tel Aviv.

During the preoperative evaluation, patients will be given an explanation about the possibility of participating in the study. Patients who agree to participate will sign an informed consent form.

Inclusion Criteria:

• Patients undergoing neurosurgical surgery for resistant pain
• Ability to sign informed consent form for participation in the study
• A functional level is sufficient for cooperation and the performance of various tasks before and after surgery, including performing MRI's, answering pain questioners, and neuropsychological evaluations.

Exclusion Criteria:

• Refusal to participate
• Pregnant women