Jan Claassen

Jan Claassen is a Professor of Neurology at Columbia University Irving Medical Center, where he serves as Chief of the Division of Critical Care & Hospitalist Neurology and Medical Director of the Neurological Intensive Care Unit. He earned his medical degree from the University of Hamburg, Germany, and completed residencies at Harlem Hospital Center and NewYork-Presbyterian Hospital/Columbia University Medical Center, followed by a fellowship at Columbia. His research focuses on disorders of consciousness, covert consciousness detection, sleep spindles as predictors of recovery after acute brain injury, and complications of aneurysmal subarachnoid hemorrhage. He co-edited *Plum and Posner's: Diagnosis and Treatment of Stupor and Coma* and serves on the Neurocritical Care Society Board of Directors, co-chairs the Curing Coma Campaign, and sits on the editorial board of *Annals of Neurology*.