Effects of tic suppression: Ability to suppress, rebound, negative reinforcement, and habituation to the premonitory urge

► Tic frequency decreased 72% during reinforced suppression. ► Post-suppression tic frequency returned to baseline. ► Ratings of premonitory urge severity did not increase with initial tic suppression. ► Ratings of premonitory urge severity did not decrease with sustained suppression. ► Premonitory urges may represent an enduring etiological consideration for Tourette's.