Dr. De Salles has surgically treated over one thousand patients with functional diseases of the brain and more than 8,000 patients with brain or spine tumors using the most advanced techniques of surgery, radiation and imaging during his 30 years of academic neurosurgery. His dedication to techniques of minimally or no invasion of the human body to handle serious illness is well described on his five books, including this science fiction and over two hundred scientific articles, editorials and book chapters. His experience extends to neurological disorders such as Parkinson’s disease, Alzheimer’s disease, major depression, epilepsy, neuropathic pain, headaches, brain tumors, brain injury and vascular diseases of the brain. Dr. De Salles is a world renowned expert in Functional Neurosurgery and Radiosurgery. He is the Head of the Stereotactic Surgery section; Co-Director of the Stereotactic Radiosurgery program at the UCLA School of Medicine, and Co-Director of the Epilepsy Surgery Program at the West Los Angeles Veteran Administration Hospital. Dr. De Salles serves as the Assistant Chief of Neurosurgery for the West Los Angeles Veterans Administration at the Wadsworth Medical Center and he is a member of the Pain Management Group at the UCLA School of Medicine. Dr. De Salles is a Professor in the Departments of Neurosurgery and Radiation Oncology at the UCLA School of Medicine since 1990. He received a PhD in Physiology and Biophysics from the Virginia Commonwealth University, and specialized in stereotactic neurosurgery at Harvard University while working at the Massachusetts General Hospital. Dr. De Salles honed his functional neurosurgery expertise at Umeå University, in Sweden. Dr. De Salles is a member of several distinguished professional societies such as the American Medical Association, Congress of Neurological Surgeons, the Massachusetts Medical Society, the International Stereotactic Radiosurgery Society, the World Society for Stereotactic and Functional Neurosurgery, the American Society for Stereotactic and Functional Neurosurgery, the Western Society of Neurosurgery, honorary member of the Brazilian Society for Stereotaxis and Functional Neurosurgery and of the Brazilian Radiosurgery Society. Dr. De Salles lectured in five continents of the world and dedicated large part of his youth working with communities in need in his home country, Brazil where he experienced firsthand surgery for aggressive behavior.