and again while they have their eyes open (4.25 min). Measures of resting EEG analyzed in COGA are (1) EEG power (absolute and relative) in each frequency band, representing the amount of neural activity in these frequency bands, 71 and (2) metrics of EEG functional connectivity (coherence and source connectivity (eLORETA) that reflect the degree to which different brain regions/neural networks 71 communicate with each other.