Error-Related Negativity and Tic History in Pediatric Obsessive-Compulsive Disorder

Objective The error-related negativity (ERN) is a negative deflection in the event-related potential after an incorrect response, which is often increased in patients with obsessive-compulsive disorder (OCD). However, the relation of the ERN to comorbid tic disorders has not been examined in patients with OCD. This study compared ERN amplitudes in patients with tic-related OCD, patients with non–tic-related OCD, and healthy controls. Method The...