and salience detection processes previously attributed to P3-related delta activity generally (Basar-Eroglu et al., 1992; Karakas et al., 2000; Knyazev, 2007). These cognitive processes have been implicated in ADHD, conduct disorder, and substance use disorders (Dom, De Wilde, Hulstijn, van den Brink, & Sabbe, 2006; Garon, Moore, & Waschbusch, 2006; Y. T. Kim, Lee, & Kim, 2006), further supporting the relationship between this delta component and externalizing.