… resting-state fMRI functional connectivity studies is whether or not to regress out the global
average brain signal … In the current paper, we examine the dimensionality of resting-state fMRI …

… global rsfMRI signal, ie, the mean signal averaged over the whole brain or the gray matter
regions, and spatially non-specific correlations with which it is linked. The global signal is a …

… signal change (Fig. 2). All components except K are reproducible in this analysis. In these
maps of coherent resting fluctuations, the average percentage BOLD signal … , >2% signal …

… Global signal, the average signal across all voxels in the brain, is removed in some fMRI
studies to correct for physiological noise, such as respiratory and cardiac noise, under the …

… observed in our measured resting-state data, we convolved the group-average voxel-wise …
’), signals averaged within the primary sensory cluster (red trace) preceded those averaged …

… associations between resting-state functional connectivity (… whole-brain RSFC increased by
an average of 47% across 23 … whole-brain RSFC increased by an average of 40% across 58 …

We present a history of the concepts and developments that have led us to focus on the
resting state as an object of study. We then discuss resting state research performed in our …

… Similar results were found for SA [all F(2,48)>205, p<0.001], except that RelCon with no
signal averaging did exhibit a weak but significant dependence on SA [F(2,48)=7.13, p=0.01]. …

… of global signal removal on resting state correlation maps … in the correspondence between
resting-state correlations and … averaged across the entire brain, which we term the global …

… To illustrate this point, suppose at time points t 1 and t 2 , we average across multiple …
For example, we can average each realization of the random process U t resulting in M(U 1 )…