Table 5.
Component loadings for each of the PCA's rotated components (RC, Sample 2) in the BIS/BAS analysis. ROIs represent 12 regions of interest selected for the fMRI analyses
| ROI | RC1 | RC2 | RC4 | RC6 | RC3 | RC5 |
|---|---|---|---|---|---|---|
| BA44 | 0.73 | −0.19 | 0.08 | 0.13 | −0.04 | 0.06 |
| BA45 | 0.34 | 0.69 | −0.19 | 0.17 | −0.04 | 0.05 |
| BA6 | 0.18 | 0.06 | 0.10 | 0.32 | 0.73 | −0.01 |
| BA10 | 0.01 | 0.15 | −0.02 | 0.90 | 0.17 | −0.12 |
| BA9 | 0.58 | 0.05 | −0.21 | −0.25 | 0.02 | −0.58 |
| BA8 | 0.68 | 0.18 | 0.17 | −0.01 | 0.10 | 0.00 |
| BA46 | 0.39 | −0.49 | −0.04 | 0.47 | −0.25 | 0.11 |
| NAcc | −0.08 | −0.06 | −0.08 | −0.09 | 0.79 | −0.02 |
| VTA | 0.10 | 0.09 | −0.10 | −0.16 | −0.03 | 0.90 |
| BA7 | 0.08 | −0.10 | 0.85 | 0.07 | −0.12 | −0.08 |
| ParacG | −0.17 | 0.73 | 0.23 | 0.05 | −0.04 | 0.07 |
| PostcG | 0.14 | 0.36 | 0.66 | −0.15 | 0.16 | 0.06 |
| Cumulative variance explained | 0.14 | 0.27 | 0.38 | 0.49 | 0.60 | 0.70 |
Abbreviations: BA, Brodmann area; VTA, ventral tegmental area; NAcc, nucleus accumbens; ParacG, paracentral gyrus; PostcG, postcentral gyrus; ROI, region of interest.