Figure 10

EEG data with backfitting to dominant four microstates. The EEG data and global field potential (GFP) are plotted against time. Each time point of EEG corresponds to a topographic map. The maps corresponding to peaks of GFP are submitted to a clustering analysis that yielded the four dominant template maps shown in the top right. The maps are backfit onto the data in a winner-takes-all process, the result is shown as a color bar where the four colors correspond to the dominant maps. The enlargement shows EEG, GFP, and the topographic maps for each time point. The blue dots mark the local troughs of GFP and the blue boxes mark the corresponding maps. The local troughs of GFP correspond to changes in polarity of the maps