inappropriate, persistent repetition of particular bodily postures, actions or speech patterns. These are typically involuntary, rhythmic, coordinated, and purposeless movements, postures or vocalizations that may appear ritualistic or purposeful in nature. Stereotypies may be associated with a variety of neurologic and behavior disorders, such as Rett syndrome, Tourette syndrome, Obsessive-compulsive disorders, Restless Legs syndrome, Schizophrenia and Autism.