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Chorea, or Chorea Sancti Viti (Latin for “St. Vitus’ dance”) is an involuntary movement disorder characterized by abrupt, purposeless, patternless involuntary movements. Causes include Huntington’s disease and drug side effects.

Example: The patient presents a series of abnormal movements which are quick and unpredictable, involving many muscle groups.

APA Reference
Grinnell, R. (2018). Chorea. Psych Central. Retrieved on July 8, 2020, from