Psychomotor disorders
Stereotyped movement disorders
Habit contractions
Tics
Tic
Habit spasms
Note under [Stereotyped behavior (Psychiatry)]
Here are entered works on involuntary, sudden, rapid, recurrent, nonrhythmic, movements or vocalizations. Works on intentional, repetitive, non-spasmodic behaviors that serve no constructive, socially acceptable purpose are entered under [Stereotyped behavior (Psychiatry).]
Tic disorders