<unk>  (or<unk> a, occasionally) is an abnormal involuntary movement disorder, one of a group of neurological disorders called dyskinesias. The term<unk>  is derived from the ("dance"; see<unk> a), as the quick movements of the feet or hands are comparable to dancing. The term hemichorea refers to<unk>  of one side of the body, such as<unk>  of one arm but not both (analogous to hemiballismus).
Chorea
Myoclonus
Dystonia
Opisthotonus
Paratonia
Opsoclonus
Athetosis
Clonus