Investigating Circadian Rhythms in Youth With Persistent Tic Disorders
This study examines circadian rhythms and morningness-eveningness preference in youth with Persistent Tic Disorders (PTDs), including Tourette's Disorder (TD); and assesses the effects of wearable short wavelength light therapy on circadian rhythms and tic symptoms.
• DSM-5 diagnosis of Tourette's Disorder, Persistent Motor Tic Disorder, or Persistent Vocal Tic Disorder
• Yale Global Tic Severity Scale Score ≥ 14 for Tourette's Disorder or ≥ 10 for Persistent Motor Tic Disorder or Persistent Vocal Tic Disorder
• fluency in English