While neuroimaging data have isolated the DMN as the dominant network in the resting brain, electrophysiological data have identified α (8–12 Hz) oscillations as the dominant electrical activity in the resting brain (Klimesch et al., 2007; Klimesch, 2012). α Oscillations represent a neural mechanism mediating long-range interregional interactions (Palva and Palva, 2007; Tang et al., 2007; Hillebrand et al., 2016). Importantly, evidence has begun to link α oscillations to DMN activity (especially during eyes-open resting state; Mantini et al., 2007; Jann et al., 2009; Knyazev et al., 2011; Scheeringa et al., 2012; Mo et al., 2013), raising the possibility that, to some extent, the DMN could be organized and maintained by long-range synchronization of α oscillations (Engel and Singer, 2001; Uhlhaas et al., 2008; Jann et al., 2009).
