TABLE 2.
Task state-related brain activity in each group and intergroup activity differences under each condition.
| Group condition | Area (BA) | Voxel size | MNI coordinates (RAI) |
Peak Z Score | ||
| x | y | z | ||||
| RA retention | No significant activity | |||||
| RA twirling | B. thalamus | 131 | 0 | −15 | 9 | −3.51 |
| RA twirling vs. retention | R.SMA(6) | 148 | 18 | 3 | 63 | −3.49 |
| SA twirling | R.SFG(8) | 123 | 15 | 15 | 45 | −3.80 |
| SA retention | R.SFG(8) | 114 | 18 | 21 | 45 | −3.87 |
| SA twirling vs. retention | No significant activity | |||||
| Retention RA vs.SA | ACC(32/24) | 66* | 3 | 30 | −6 | −3.29 |
| R.PCU(7) | 35* | 9 | −42 | 69 | 3.29 | |
| R.SMA/SFG(6) | 65* | 18 | 21 | 45 | 3.33 | |
| R.MFG/dlPFC(6) | 36* | 30 | 9 | 51 | 3.89 | |
| Twirling RA vs. SA | R.PCU(31) | 32* | 15 | −51 | 36 | 3.27 |
| ACC(24) | 38* | 0 | 24 | 18 | −3.03 | |
| Twirling/Retention vs. RA/SA | rACC(25) | 62* | −3 | 21 | −9 | 3.84 |
| R.SMA(6) | 246 | 15 | 3 | 60 | −4.04 | |
*Calculated using a small volume correction for multiple comparisons using 3dClustSim (voxel level, p < 0.005; cluster level, p < 0.05). BA, Brodmann area; RA, real acupuncture; SA, sham acupuncture; SMA, supplemental motor area; SFG, superior frontal gyrus; ACC, anterior cingulate cortex; PCU, precuneus; MFG, middle frontal gyrus; dlPFC, dorsolateral prefrontal cortex; rACC, rostral anterior cingulate cortex.