In my senior honors thesis, I explored Error-Related Negativity (ERN), a key electrophysiological marker of error-monitoring, and its correlation with task performance in young adults diagnosed with Generalized Anxiety Disorder (GAD). This study aimed to enhance our understanding of how anxiety influences cognitive control processes, such as error monitoring, which are critical in both daily functioning and mental health. 

Through the use of electroencephalography (EEG), we examined the differences in ERN between individuals with Generalized Anxiety Disorder (GAD) and healthy control participants during a task designed to provoke errors. While no significant ERN differences were found between GAD participants and controls within the GAD group, a more pronounced ERN was linked to better task accuracy, suggesting enhanced error processing. GAD participants also showed longer reaction times on error trials. Despite limitations such as a small sample size, the findings suggest ERN could serve as a marker for compensatory error processing in GAD, with future research needed to clarify its role in anxiety and response to cranial electrical stimulation(CES) treatment.