al., 2007a; Kelly et al., 2009). Recent work has shown that distinctions between brain regions made in rs-fcMRI networks are reflected in distinct evoked fMRI task responses (Dosenbach et al., 2007; Nelson et al., 2010), and that visual perceptual learning can alter rs-fcMRI correlations (Lewis et al., 2009). These data suggest a functional basis for rs-fcMRI correlations, in addition to whatever role direct and indirect physical connectivity play in signal generation or support (Hagmann et al., 2008; Honey et al., 2007).
