Brett E Youngerman1, Guy M McKhann2. 1. Resident in neurosurgery at Columbia University Medical Center in New York City. 2. Neurosurgeon and translational neuroscientist at Columbia University Medical Center/New York Presbyterian Hospital in New York City, and he is the director of the Adult Hydrocephalus Center and of epilepsy and movement disorder surgery and awake brain mapping for tumors and epilepsy at Columbia, and leads the Epilepsy Neurophysiology Laboratory and extensively collaborates with the Brain Tumor and Cognitive Neurophysiology research programs.