Fig. 6
From: Subcortical evidence for a contribution of arousal to fMRI studies of brain activity
Reproducibility of the global signal co-activation pattern. Global signal co-activation maps derived from the DAY 1 (a) and DAY2 (b) data of the top 94 subjects with the largest global signal fluctuations (i.e., standard deviation) in DAY 1 data, from the DAY 1 data of 94 randomly selected subjects (c), from the DAY 1 data of top 20 subjects showing the largest global signal fluctuations (d), as well as from the DAY 1 data of top 94 subjects but without using ICA-FIX preprocessing (e). The result in a is the same as that shown in Fig. 3. Three slices are at Z = −10, 7, and −18, respectively. The white arrows and magenta circles in the top, middle, and bottom rows indicate de-activations in the nucleus basalis (NB) of the basal forebrain, the dorsal midline thalamus, and the midbrain structure, respectively
