Research Article: Co-morbid tics and stereotypies: a systematic literature review
Introduction:
Tics and stereotypies are the most common hyperkinetic movement disorders occurring during the developmental period [1]. The current edition of the DSM [2] lists tic disorders and stereotypic movement disorder alongside developmental coordination disorder as motor disorders within the category of neurodevelopmental conditions [2]. Tics are defined as sudden, rapid, recurrent, non-rhythmic movements or vocalizations, such as eye blinking, grimacing, shoulder shrugging, grunting and sniffing [3]. Tics can be either…
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