“…Beyond discrete diagnostic categories, individuals with high trait anxiety (Olvet and Hajcak, 2009), high negative affect (Hajcak et al, 2004), and increased behavioral inhibition (Boksem et al, 2006) are also characterized by an increased ERN. Contributing to this literature, we recently found that greater ERN amplitude was associated with greater levels of fear-based anxiety symptoms (eg, panic, social anxiety), but was unrelated to distress/ misery symptoms (eg, depression), in a heterogeneous comorbid patient population (Gorka et al, 2017) and concluded that the ERN may be an objective, psychophysiological marker that tracks the severity of anxiety psychopathology. Of note, however, is that the functional significance of the ERN is still a topic of debate and there are several existing theories that shed light on the mechanisms that may contribute to an enhanced ERN in anxious populations.…”