fMRI BOLD Correlates of EEG Independent Components: Spatial Correspondence With the Default Mode Network
Frontiers in Human Neuroscience November 27, 2018 Marcel Prestel, Paul Steinfath, Michael Tremmel et al. 24 citations
Power fluctuations in delta, theta, beta, and gamma frequency bands of electroencephalographic (EEG) signals correlate with spontaneous blood oxygenation level dependent (BOLD) activity in regions of the default mode network (DMN) during eyes-closed resting state. An EEG component commonly identified as eye movements also correlates with BOLD activity within DMN regions. These correlations are in part stable across time, as shown by repeating analyses one year later. The relationship between the eye movement component and the DMN suggests a behavioral association between DMN activity and eye movement level or neuronal activity in that component. Previous findings of an association between frontal midline theta activity and the DMN were replicated.