“…ERP source localization studies suggest that the P3 is localized to the bilateral prefrontal cortex, parietal-occipital junction, and parietal lobe, while the N1 is localized predominantly to bilateral auditory cortex, with some evidence supporting additional sources in the prefrontal cortex (Anderer et al, 1998;Giard et al, 1994;Halgren et al, 1995a;Liegeois-Chauvel et al, 1994). Functional magnetic resonance imaging (fMRI) studies have confirmed and extended these findings Casey et al, 2001;Clark et al, 2001;Clark et al, 2000;Kiehl et al, 2001a;Kiehl et al, 2001b;Kiehl & Liddle, 2003;Kiehl et al, 2005;Kirino et al, 2000;Linden et al, 1999;McCarthy et al, 1997;Menon et al, 1997;Opitz et al, 1999;Stevens et al, in press;Strange & Dolan, 2001). These studies report that target detection elicits widespread cortical and subcortical activation, including multiple foci in the prefrontal, temporal, parietal and occipital lobes, and subcortical sites.…”