Which disorder is temporary and involves tics present for less than one year?

Provisional Tic Disorder is characterized by the presence of motor or vocal tics that occur for a period of less than one year. This diagnosis is specific to situations where the tics are not chronic and instead emerge temporarily, often in response to stress or environmental factors. The tics can be either simple or complex in nature and may vary in form.

In understanding this disorder, it's important to note that while tics may seem persistent, Provisional Tic Disorder is diagnosed specifically when these tics have been present for a duration that does not exceed one year, distinguishing it from chronic conditions. This is why this option is the correct response, as it reflects both the temporary nature of the tics and the specified time constraint outlined in the diagnosis criteria.

Other disorders listed, such as Persistent Tic Disorder, reflect a longer-term condition where motor or vocal tics are present for more than a year, and Tourette's Disorder involves a combination of both motor and vocal tics that are also present for more than one year. Stereotypic Movement Disorder involves repetitive, non-functional movements that are not classified as tics, thus further confirming the distinction of Provisional Tic Disorder as the only correct choice for a temporary condition involving tics of shorter duration.