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Regional-mean time series of BOLD (blue) and CBF (red) in select brain regions. We examined the posterior cingulate cortex (PCC, (a, c)) and the right dorsolateral prefrontal cortex (DLPFC-R, (b, d)). The time series for one illustrative subjective are shown in (a) and (b), whereas the corresponding group-average time courses are shown in (c) and (d). The error bars represent the standard error of the mean (SEM) across individuals at each time point.
