Other researchers have explored brain networks derived from scalp-recorded EEGs and their relationship to rs-fMRI networks. Earlier work used low-resolution electromagnetic tomography (LORETA) (Pascual-Marqui, 2002, Pascual-Marqui, 2007) to estimate cortical EEG sources and independent components analysis (ICA) to identify source networks, and demonstrated EEG networks involving similar cortical regions to those of rs-fMRI networks from the literature. More recent work studied the effect of acute alcohol intake on the brain's resting state network in social drinkers, by examining the magnitude squared coherence between the activity of cortical sources of EEG within different frequency bands (Lithari et al., 2012) to construct brain networks.
