RT Book, Section A1 Ford, Blair A1 Geyer, Howard A1 Bressman, Susan B. A2 Brust, John C.M. SR Print(0) ID 1159969625 T1 Movement Disorders T2 CURRENT Diagnosis & Treatment: Neurology, 3e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259835315 LK accessmedicine.mhmedical.com/content.aspx?aid=1159969625 RD 2024/04/19 AB Movement disorders are conditions that produce either reduced or excessive movement. Neurologic disorders that result in a paucity or slowness of movement are termed hypokinetic disorders. The category of hypokinetic disorders is represented by Parkinson disease and other causes of parkinsonism. Hyperkinetic disorders are characterized by excessive, involuntary movements. Hyperkinetic disorders can usually be placed into one of five main categories of abnormal movement: dystonia, chorea, tremor, myoclonus, or tic.