The National Institute of Neurological Disorders and Stroke is committed to gene discovery, as a strategy for identifying the genetic causes and correlates of nervous system disorders. The NINDS Human Genetics DNA and Cell Line Repository banks samples from subjects with cerebrovascular disease, dystonia, epilepsy, frontotemporal degeneration, Huntington's disease, motor neuron disease, Parkinsonism and Tourette Syndrome, as well as population controls.