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fMRI scan procedures. (a) Resting-state run lasted 8 min. (b) The acupuncture run employed the NRER-fMRI design paradigm, incorporating 1 min needle manipulation, preceded by 10 seconds rest and followed by 8 min rest scanning. (c) The motor task run employed a conventional block design in which five blocks of 20-second finger movement were alternated by five blocks of 20-second baseline, with 10 seconds rest in the beginning.
