A neural biomarker, the error‐related negativity, predicts the first onset of generalized anxiety disorder in a large sample of adolescent females

Objective An increased neural response to making mistakes has emerged as a potential biomarker of anxiety across development. The error‐related negativity (ERN) is an event‐related potential elicited when people make mistakes on simple laboratory‐based reaction time tasks that has been associated with risk for anxiety. This study examined whether the ERN prospectively predicted the first onset of generalized anxiety disorder ( GAD ) over 1.5...