Recent work revealed that resting-state fMRI (rsfMRI) network dynamics in the mouse brain governed by infraslow transitions between a limited set of recurring BOLD co-activation patterns. Here we extend these findings to the macaque and awake human brain, showing that in both these higher mammalian species rsfMRI timeseries can be similarly deconstructed into a set of oscillatory coactivation patterns, whose occurrence is phase-locked to intrinsic global fMRI Signal (GS) fluctuations. Our results reveal a fundamental, evolutionarily conserved spatiotemporal structure of resting-state fMRI activity.
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