Research Article

Impact of Global Normalization in fMRI Acupuncture Studies

Figure 5

Changes in activations between NO PSGS and PSGS. The map is based on REM group results at , uncorrected with 5 contiguous voxels. (a) and (b) show the changes in activations in the acupuncture and tactile runs, respectively. For each panel, the “stronger” regions are colored in red, delegating the extent of the activations that are significant for both NO PSGS and PSGS, and show a larger absolute value of the -value for NO PSGS. The “weaker” regions are colored in yellow, delegating the extent of the activations that are significant for both NO PSGS and PSGS, and show a smaller absolute value of the -value for NO PSGS. The “disappeared” regions are colored in blue, delegating the extent of the activations that are significant for NO PSGS but nonsignificant for PSGS. The “arisen” regions are colored in green, delegating the extent of the activations that are nonsignificant for NO PSGS, but are significant for PSGS.
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