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Dimension-specific prefrontal dysconnectivity. Voxel-wise correlations between functional global brain connectivity with global signal regression within the prefrontal cortex and the severity of the four posttraumatic stress disorder dimensions ((a) numbing; (b) avoidance; (c) arousal; (d) re-experiencing). The prefrontal cortex region is labeled with a black line. The color bar depicts the z-values of the negative (blue) and positive (yellow–red) correlations.
