Table 3.
Association between cortical thickness/subcortical volumes and LPP amplitude in the whole sample (PBD + HC).
| Areas | Thickness Main Effect (All Faces) | Thickness Main Effect (Happy Faces) |
Thickness by Group
Interaction (All Faces) |
Thickness by Group
Interaction (Happy Faces) |
||||
|---|---|---|---|---|---|---|---|---|
| F | p | F | p | F | p | F | p | |
| PC1 | 2.75 | .106 | .41 | .523 | .611 | .439 | 1.64 | .687 |
| PC2 | 4.91 | .033 | 5.55 | .024 | .01 | .934 | .06 | .805 |
| L-isthmus cingulate | 1.08 | .304 | .18 | .673 | .02 | .883 | .39 | .539 |
| R-isthmus cingulate | .02 | .883 | 1.41 | .243 | .74 | .396 | .04 | .848 |
| R-precentral | .70 | .407 | .26 | .614 | 5.97 | .019 | 5.21 | .028 |
| L-precentral | .32 | .373 | .16 | .696 | 1.81 | .187 | .93 | .341 |
| R-medial orbitofrontal | 1.63 | .209 | 1.31 | .260 | .11 | .742 | .07 | .798 |
| L-caudal midlle frontal | .64 | .429 | 1.63 | .210 | .71 | .406 | 1.22 | .276 |
| L-amygdala | 1.02 | .318 | 1.16 | .289 | <.01 | .973 | .01 | .911 |
| R-amygdala | 1.40 | .245 | 1.81 | .187 | .33 | .570 | .13 | .725 |
| L-caudate | 3.96 | .054 | 4.69 | .037 | .31 | .584 | .38 | .542 |
| R-caudate | 1.87 | .180 | 2.77 | .105 | .05 | .826 | .2.77 | .105 |
| L-globus pallidus | 2.21 | .146 | 4.44 | .042 | .14 | .706 | 1.29 | .264 |
| R-globus pallidus | 4.32 | .045 | 5.80 | .021 | .15 | .698 | 1.08 | .307 |
| L-hippocampus | 6.65 | .420 | 1.06 | .331 | .32 | .576 | .64 | .428 |
| R-hippocampus | .98 | .329 | 1.12 | .297 | .28 | .599 | .79 | .380 |
| L-putamen | .74 | .394 | .02 | .887 | .11 | .744 | .02 | .887 |
| R-putamen | .13 | .724 | .69 | .413 | .20 | .657 | <.01 | .969 |
| L-nucleus accumbens | 2.36 | .630 | .15 | .698 | .66 | .421 | 1.83 | .185 |
| R-nucleus accumbens | .99 | .326 | .58 | .452 | 1.10 | .302 | 2.15 | .152 |
| L-thalamus | 3.37 | .075 | 3.75 | .061 | .04 | .851 | .13 | .718 |
| R-thalamus | 2.57 | .118 | 2.70 | .109 | .02 | .877 | .08 | .774 |
Legend: Significant p-values values (p < 0.05) are indicated in bold, trend-level p-values (p < .07) are indicated in italics. Abbreviations: LPP: late positive potential; PC: principal component. PBD: youth with bipolar disorder; HC, healthy controls.