[Tourette Syndrome].

Tourette syndrome (TS) is a neurodevelopmental disorder. TS was formerly considered to be a psychogenic disease; however, TS has recently been thought to be a heterogeneous disease with neurological bases and involving environmental and genetic factors. For example, it has been suggested that neurotransmitters including dopamine and cortico-striato-thalamo-cortical circuits are suggested to be associated with TS pathogenesis. According to these recent evidence, in addition to pharmacotherapy as the standard treatment, deep brain stimulation is being applied for patients with treatment-refractory TS in clinical settings.