Chronic vocal tic disorder; Tic - chronic motor tic disorder
Chronic motor tic disorder involves quick, uncontrollable movements or vocal outbursts (but not both).
About 1 to 2% of the population has chronic motor tic disorder. The condition is more common than Tourette syndrome. However, it is not as common as transient tic disorder.
All types of chronic tics are believed to be forms of Tourette syndrome.