Figure 1

Experimental paradigm and the schematic of the current research frame. There are three scan sessions: a pre-acupuncture resting state (baseline) scan lasting 6 minutes; a needling stimulation scan lasting 6 minutes with a single trail electroacupuncture (EA) stimulation; and a post-needling scan lasting 12 minutes. Datasets RUN1, RUN31 and RUN32 are truncated from the pre-acupuncture resting state and the post-needling scan (see the Methods for details). This paper focuses on the the delayed post effects of acupuncture, which refers to the post-needling scan. Therefore, datasets RUN1, RUN31 and RUN32 are used for further analysis.