Table 1. Population mean (Mean) and population variance (Standard deviation, SD) for Percent BOLD Signal Change (Ambiguous Facial expressions vs. Control Stimuli) and the Degree of Functional Connectivity (number of regions correlated with an r>0.3).
| Region of Interest | Percent BOLD Signal Change | Degree of Functional Connectivity | ||
| Mean | Variance | Mean | Variance | |
| L MVLFC | 0.35 | 0.65 | 9.91 | 4.65 |
| R MVLFC | 0.43 | 0.63 | 10.20 | 4.87 |
| L MDLFC | 0.40 | 0.56 | 10.72 | 4.87 |
| R MDLFC | 0.56 | 0.58 | 11.43 | 4.95 |
| L PMC | 0.37 | 0.66 | 10.46 | 5.07 |
| R PMC | 0.44 | 0.59 | 11.83 | 4.98 |
| R PreSMA | 0.37 | 0.72 | 7.88 | 5.06 |
| L Rhinal Sulcus | 0.17 | 0.40 | 5.48 | 3.92 |
| R RhinalSulcus | 0.23 | 0.38 | 6.17 | 4.23 |
| L Amygdala | 0.37 | 0.63 | 7.36 | 4.44 |
| R Amygdala | 0.50 | 0.61 | 7.99 | 4.78 |
| L Ant STS | 0.27 | 0.67 | 8.02 | 4.88 |
| R Ant STS | 0.44 | 0.52 | 10.45 | 5.19 |
| L Post STS | 0.52 | 0.53 | 12.70 | 4.78 |
| R Post STS | 0.73 | 0.54 | 14.03 | 4.44 |
| L FFA | 0.54 | 0.62 | 11.60 | 4.66 |
| R FFA | 0.64 | 0.75 | 12.20 | 4.54 |
| L LOC | 0.47 | 0.70 | 12.29 | 4.27 |
| R LOC | 0.58 | 0.68 | 12.21 | 4.23 |
| L V2V3 | 0.37 | 0.58 | 9.99 | 4.65 |
| R V2V3 | 0.37 | 0.58 | 9.81 | 4.64 |
| L Cerebellum | 0.45 | 0.53 | 11.22 | 4.74 |
| R Cerebellum | 0.22 | 0.52 | 8.89 | 4.67 |
| L Putamen | 0.25 | 0.58 | 7.64 | 4.81 |
| R Putamen | 0.33 | 0.60 | 8.42 | 4.99 |
Regions in bold are those with GREML-based estimates of heritability of the brain response to ambiguous facial expressions (% BOLD Signal Change) significant at an alpha 0.05 (uncorrected).
Mid-ventrolateral frontal cortex (MVLFC); Mid-dorsolateral frontal cortex (MDLFC); premotor cortex (PMC), pre supplementary motor area (PreSMA); superior temporal sulcus (STS); fusiform face area (FFA); lateral occipital cortex (LOC); left (L); right (R).