Figure 2From: Imaging the functional connectivity of the Periaqueductal Gray during genuine and sham electroacupuncture treatment Functional connectivity results. A) Positive functional connectivity during sham treatment; B) Positive functional connectivity during genuine treatment. C) and D) Main effect of EA stimulation: Genuine > Sham (C) Sham > Genuine (D). The threshold was set to voxelwise p < 0.001 uncorrected with 31 contiguous voxels.Back to article page