Differential Localization of Pain-Related and Pain-Unrelated Neural Responses for Acupuncture at BL60 Using BOLD fMRI

Figure 1

Block design of stimulations. A dummy scan was performed for 9 seconds before the experiment. Participants received alternating visual stimulations of the 30-second baseline video of the left leg (B) and the 30-second video of acupuncture treatment at the left BL60 (V). They then proceeded to undergo the 30-second sham acupuncture stimulation at BL60 with the same visual stimulation of the left leg (S) for 270 seconds followed by 30 seconds of B, 30 seconds of V, and 30 seconds of verum acupuncture at BL60 with the same visual stimulation of the left leg (A) for 270 seconds. DS: dummy scan, B: baseline stimulation, V: visual stimulation, S: sham acupuncture, A: verum acupuncture.