Hair pulling in pediatric populations has not received adequate empirical study. Investigations of the affective and sensory states contributing to the etiology and maintenance of hair pulling may help to elucidate the classification of trichotillomania (TTM) as an impulse control disorder or obsessive-compulsive spectrum disorder. The current…

Chronic tic disorders, including Tourette's syndrome (TS), affect approximately .5% of children and adolescents. Although strong evidence exists supporting a neurobiological etiology, operant factors may play a role in the maintenance of tic behaviors. Pharmacological approaches remain the most commonly used intervention for chronic tic disorder…