Table 5.
Brain regions showing significant group-by-age interactions in the happy > angry contrast shown by an F test (Z > 2.3, pcorr < 0.05), along with the significant post hoc pairwise t test (Z > 2.3, pcorr < 0.008) results.
| Contrast | Cluster | Nvoxels | Cluster p-value | Max Z | Max Z coordinates (x, y, z) (mm) | AAL regions (% volume of cluster) |
|---|---|---|---|---|---|---|
| Happy > angry | 1 | 612 | 0.02 | 4.11 | (−8, 52, 54) | SFGd.L (81%), SFGm.L (17%) |
| TD < ASD | 1 | 1331 | 6.87e−5 | 5.01 | (−18, 48, 16) | SFGd.L (41%), SFGm.L (35%), MFG.L (14%) |
| TD < OCD | 1 | 1975 | 9.54e−7 | 4.61 | (−8, 52, 54) | SFGd.L (41%), SFGm.L (38%), SFGm.R (15%) |
Regions corresponding to the significant between-group difference F test results are bolded.
Nvoxels number of voxels, Z z-statistic, AAL automated anatomical labelling, L left hemisphere, SFGd superior frontal gyrus, SFGm medial frontal gyrus, MFG middle frontal gyrus.