(also hyperkinesia /-ˈnēZHə/)
1 Medicine Muscle spasm.
- Of the remainder, just under one in five had confirmed hyperkinesis.
- Symptoms but not impact fell significantly in children with hyperkinesis.
- The hyperkinesia is usually confined to one side of the body contralateral to a lesion in the subthalamic nucleus.
2 Psychiatry A disorder of children marked by hyperactivity and inability to concentrate.
- Childhood psychopathology is often persistent, particularly among children with conduct disorder and hyperkinesis.
- Dystonia, parkinsonism, and hyperkinesia all occur in elderly, untreated people.
- Behavioral problems such as hyperkinesis and aggressiveness have been associated with LKS.
Mid 19th century: from hyper- 'above normal' + Greek kinēsis 'motion'.
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