RESEARCH OPPORTUNITY: Help advance knowledge on Tic Disorders and earn $50! Seeking children and adolescents ages 8-17 with CTD or TS to participate in a 2-3 hour research study conducted at CHOP. The study investigates brain mechanisms associated with controlling repetitive behaviors. Please visit http://www.patsainc.org/Tourettes-Info/Current-Research-Opportunities.aspx or contact Kathryn Roberts, M.A. at email@example.com for study details or to sign up.