Clusters in the first two rows were displayed only if they were larger
than 50 voxels. The third row represents the group difference between patients
with chronic low back pain and healthy controls. HC, healthy controls; CLBP,
chronic low back pain; PFC, prefrontal cortex; somato, somatosensory cortex; mm,
millimeter; R, right. āZā represents Montreal Neurological
Institute (MNI) coordinates, representing axial view.