Table 5.

Mirroring of digit forces during fMRI

ShamBihemispheric tDCSRP-bihemispheric tDCSANOVA across groups
MeanSEMeanSEMeanSEF(2,39)p
Trained hand
    Force range0.13(0.01)0.14(0.01)0.15(0.03)0.3560.703
    SD0.03(0.00)0.03(0.00)0.04(0.01)0.4970.612
    Correlation of force traces0.07(0.002)0.07(0.05)0.03(0.03)0.3870.682
Untrained hand
    Force range0.12(0.01)0.12(0.01)0.13(0.02)0.2930.745
    SD0.03(0.00)0.03(0.00)0.03(0.01)0.2600.773
    Correlation of force traces0.09(0.02)0.05(0.03)0.02(0.03)1.9810.154
  • Table shows mean (±SE) of the average force range in Newtons (maximum − minimum) and SD of the passive (nonmoving) hand. Results were split depending on whether the trained hand or the untrained hand was the passive hand. The correlation between the forces was calculated between the force time series of the matching digits of the active and passive hands. The last column indicates the F test comparing the three groups.