Brain Responses to Acupuncture Are Probably Dependent on the Brain Functional Status

Figure 1

Diagram for the acupuncture stimulation protocol. The needle was inserted into the skin before fMRI data acquisition. After remaining at rest for 2 min, the needle was rotated bidirectionally with an even motion at the rate of 1 Hz for 2 min. After another rest period of 3 min, needle manipulation was repeated in a similar manner for another 2 min. After that, scanning continued for 1 min. The needle was pulled out at the end of the 10 min.