Figure 4
From: A statistical method for analyzing and comparing spatiotemporal cortical activation patterns

Sample data of electrophysiological 248-channel whole-head MEG recordings (A,B) and 64-channel whole head EEG recordings (C) in humans. Given are 2D-projections of data recorded during three-minute periods of either silence (red) or the presentation of pure tones of frequencies 1, 3, or 5 kHz (yellow, green, blue), analogously to Fig. 2. As for the animal LFP data (Figs 2 and 3), spatiotemporal cortical activity patterns in both MEG and EEG recordings showed attractor-like dynamics specific for the different stimulation conditions. All attractors were significantly different from each other (p < 0,001, insets in B and C). Scaling is in arbitrary units.