Figure 6. Drop in coherence between fronto-central and parieto-occipital cortex upon partialization with GP as predictor in each individual hemisphere for the frequency ranges of 9.5–12.5 Hz (black rectangles) and 12.5–17 Hz (grey diamonds) separately.

This drop is expressed as the percentage of the remaining coherence compared to the original coherence. In N2 (A) in nine hemispheres a drop below the level of 90% in the 9.5–12.5 Hz range can be noted while in the range of 12.5–17 Hz no relevant drop occurs. In N3 (B) a drop in the 9.5–12.5 Hz range is present in eight hemispheres; again no such drop occurs in the 12.5–17 Hz range (r = right hemisphere; l = left hemisphere).