Table 3.
Comparison of PPI activity between high SA and low SA groups.
| Region | L/R | BA | MNI Coordinates | Cluster Size (mm3) |
|---|---|---|---|---|
| Low SA > high SA, Positive > Neutral | ||||
| Inferior parietal cortex/Somatosensory cortex | L | BA40/BA2 | [-48, -34, 37] | 351 |
| Precentral gyrus/Premotor cortex | L | BA6 | [-48, -4, 31] | 270 |
| Middle temporal gyrus/Inferior temporal sulcus (ITS) | L | BA37 | [-51, -64, -2] | 378 |
| STS | R | BA22 | [51, -31, 4] | 540 |
| ITS/Fusiform cortex | R | BA37 | [51, -55, 1] | 378† |
| Low SA < high SA, Positive > Neutral | ||||
| No significant cluster |
Shown are two-sample t-test results of PPI activity for viewing positive social emotions (versus neutral emotion). Data were thresholded at p < 0.001 (uncorrected, k = 216 mm3). PPI seed region was a sphere of 8 mm radius centered at MNI [-33, 41, 13]. Reported are gray matter clusters that survived cluster peak level small volume correction (p < 0.05, FWE corrected), with one cluster thresholded at p < 0.051 (FWE corrected), marked with †. BA, Brodmann area; L/R, laterality.