Figure 3.

Specific activation by true acupuncture versus placebo acupuncture. Activation regions shown by fMRI signals associated with true acupuncture were compared to those from sham acupuncture. Panel 3a: sagittal, coronal and axial view (respectively) of activation in the insula and adjacent operculi. Panel 3b: Correlation of saliva production with ROI volumes.

Deng et al. BMC Complementary and Alternative Medicine 2008 8:37   doi:10.1186/1472-6882-8-37
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