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Spatial signature of EEG (left) and MEG (right) sensor-level power envelope HMM states. Both sensor and brain power maps locate power increases (positive values) and decreases (negative values) upon state activation. The scale of these power maps represents partial correlation values which were thresholded statistically, and the lower/upper scales are adapted to the minimum/maximum values. States were ordered and labelled based on a visual pairing of EEG and MEG brain power maps.
