Fig. 3: Two interpretations of GS topography.
From: Beyond noise to function: reframing the global brain activity and its dynamic topography
Interpretation 1 suggests that the GS topography is the degree of the phase coherence between global and local activity. Interpretation 2 suggests that the GS topography is constituted by the co-activation patterns (CAPs) of different networks as being phase-locked to the peak of GS, i.e., the instantaneous CAPs with zero-phase lag to GS. Global signal GS; Co-activation patterns CAPs.
