The Movement Disorder Society is an international professional society of clinicians, scientists, and other healthcare professionals.
 
 
The spectrum of clinical disorders represented by the Society includes but is not limited to: Parkinson's disease and Parkinsonism, Dystonia, Chorea and Huntington's disease, Ataxia, Tremor and Essential Tremor, Myoclonus and Startle, Tics and Tourette syndrome, Restless Legs syndrome, Stiff Person syndrome and Gait disorders.