Table 3.
Brain regions ranked according to their importance to the decision function for the model trained to predict in‐group bias of costly punishment from patterns of differences in neural response to out‐groups compared to in‐groups
| Rank | Region label | Region weight (%) | Region size (voxel) |
|---|---|---|---|
| 1 | Parietal_Inf_L | 66.18 | 1075 |
| 2 | SupraMarginal_L | 8.05 | 1614 |
| 3 | Frontal_Sup_R | 6.98 | 3046 |
| 4 | Frontal_Med_Orb_R | 5.79 | 436 |
| 5 | Cingulum_Post_L | 5.62 | 335 |
| 6 | Insula_L | 4.14 | 1769 |
| 7 | Frontal_Inf_Orb_L | 2.02 | 1072 |
| 8 | Parietal_Inf_R | 0.88 | 1254 |
| 9 | Caudate_R | 0.14 | 943 |
| 10 | Cingulum_Post_R | 0.10 | 463 |
| 11 | Putamen_R | 0.04 | 1009 |
| 12 | Insula_R | 0.03 | 1856 |
| 13 | Frontal_Inf_Orb_R | 0.03 | 1296 |