Functional Neurosurgeon · Professor · University of Utah When you think about the evolution of the human brain–just like other animals that have specialized in speed or keeping warm or gathering food–I feel our brain sort of specialized being creative and flexible and being able to generate different solutions to a given problem. To me, this is probably the most fascinating thought process that happens in the human brain. And what I do in neurosurgery–and my subspecialty is called functional neurosurgery–we don't deal with disorders in which there's an anatomical abnormality inside the brain. We deal with disorders in which there is an abnormal connection or abnormal circuitry inside the brain when there's an issue with the way the brain functions. There's no tumor. There are no abnormal blood vessels or anything like that. And that gives us an amazing opportunity to really investigate how different circuits and different areas inside the brain work.