Dr. Longardner is a movement disorders neurologist who evaluates and takes care of patients with conditions including Parkinson disease/parkinsonism, tremor, dystonia, chorea, ataxia, and tics. Her research focuses on parkinsonian non-motor symptoms, especially the relationship between orthostatic hypotension and cognition. She is also interested in using non-invasive electrophysiological techniques to diagnose tremor and other types of involuntary movements.