Hyperkinesis
| Classification according to ICD-10 | |
|---|---|
| G24.- | Dystonia |
| F90.- | Hyperkinetic disorders |
| ICD-10 online (WHO version 2019) | |
Hyperkinesis (from ancient Greek ὑπέρ hyper 'about' and κίνησις kinēsis 'movement', synonyms: hyperkinesia, hyperkinesis ) is a collective term for a multitude of involuntary extra movements that differ in form and origin. Urgent hyperkinesis in children is also known as erethism .
These arise when inhibiting mechanisms of movement control in the central nervous system are reduced or fail, which is why movement impulses can only be controlled inadequately. The unwanted movements, which are often interpreted as tics , can occur in a choral or athetotic form, with all forms in between. Hyperkinesia is associated with fluctuating ( dystonia ) or decreased ( hypotonia ) muscle tone . Hyperkinesis often occurs in disorders of the extrapyramidal motor system and in affective psychoses . Similar to tardive dyskinesia , it can also be caused by neuroleptics and other psychotropic drugs .