One study of the development of theta EROs associated with the P3 response is available (Yordanova and Kolev, 1997); however it provides little detail on development in adolescents. Since a parallel between P3 amplitude results and theta EROs may be expected (Jones et al., 2006a; Andrew and Fein, 2010), comparable decreases in P3 peak amplitudes with age in adolescents have been reported in several studies (Katsanis et al., 1996; Hill et al., 1999a; Carlson and Iacono, 2006; Stige et al., 2007; Carlson and Iacono, 2008). Gender difference in the visual P3 response measured by peak amplitudes has been recorded in adults (Hoffman and Polich, 1999; Hill et al., 1999b) and adolescents (Hill et al., 1999a). Decreases in theta EROs are consistent with studies which report decreases in resting EEG power (Whitford et al., 2007).
