Table 2.
Brain regions and their location in the Talairach coordinate space (x,y,z) where BOLD signals were positively and negatively correlated with performance accuracy in the VA task for the RW and SD conditions and effects of VA task on bold signal (main effect)
| Region | BA | x | y | z | Correlation accuracy vs. BOLD (RW) | Correlation accuracy vs. BOLD (SD) | p | Main effect RW | Main effect SD |
|---|---|---|---|---|---|---|---|---|---|
| Positive correlations | |||||||||
| Lingual gyrus | 17, 18 | 3 | −81 | −6 | NS | r=0.67 | p=0.009 | Z=3.6* | Z=3.9* |
| R cerebellum | 27 | −72 | −18 | NS | r=0.62 | p=0.02 | Z=3.2* | Z=2.6* | |
| L cerebellum | −12 | −72 | −18 | NS | r=0.65 | p=0.01 | Z=3.3* | Z=3.6* | |
| Negative correlations | |||||||||
| L cingulate | 32 | −12 | 12 | 36 | NS | r=−0.84 | p=0.0002 | NS | Z=−1.9 |
| R insula | 13 | 42 | −21 | 21 | NS | r=−0.76 | p=0.002 | Z=−2.6* | Z=−2.9* |
| Precuneus | 7 | −3 | −66 | 42 | NS | r=−0.65 | p=0.01 | Z=−2.3* | Z=−3.9* |
For the correlations the “r” values along with their significance (p) are shown and for the BOLD “Main Effect” we show the Z values for the ROI (27 voxels) centered at these cluster locations. Abbreviations correspond to BA = Brodman Area, L = left, R = right.
*
pcorr< 0.005.