TY - CHAP M1 - Book, Section TI - Movement Disorders A1 - Ojo, Oluwadamilola A1 - Patel, Shnehal A1 - Fernandez, Hubert A2 - Salardini, Arash A2 - Biller, José PY - 2016 T2 - The Hospital Neurology Book AB - Movement disorders represent a group of neurologic disorders where there is either “too much” movement or hyperkinesias, or “too little” movement or hypokinesias. Some movement disorders combine features of both, such as parkinsonism where there is tremor (a hyperkinetic phenomenon) and rigidity or bradykinesia (both hypokinetic phenomena). While a significant proportion of movement disorders are “extrapyramidal” or resulting from basal ganglia dysfunction, a number of other movement disorders can involve any portion of the neuraxis from the cerebrum to the peripheral nerves. Therefore, movement disorders should no longer be considered synonymous to extrapyramidal or basal ganglia disorders. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/16 UR - neurology.mhmedical.com/content.aspx?aid=1127047073 ER -