Table 2.
Results of statistical tests of the null hypothesis of similarity in form for the comparisons of ISS (column 3) and IMS (column 4) to the NA sample. Landmark subsets representing neuroanatomical components are used to ensure that the number of landmarks in each test is smaller than the number of individuals in the samples. Landmarks are illustrated in Fig. 3
| Landmark subset | Landmarks included in subset | P-values, ISS | P-values, IMS |
|---|---|---|---|
| Cortical surface | 1 2 3 4 9 10 11 12 | 0.030 | 0.005 |
| Subcortical forebrain | 15 16 17 18 19 20 23 24 | 0.214 | 0.697 |
| Hindbrain | 25 26 33 34 | 0.005 | 0.925 |
| Midbrain | 29 30 31 32 | 0.239 | 0.070 |
| Ventricles | 13 14 21 22 23 24 | 0.119 | 0.473 |
| Poles | 1 2 9 10 11 12 | 0.010 | 0.299 |
| Frontal region | 1 2 3 4 5 6 15 16 | 0.030 | 0.060 |
| Parieto-occipital region | 9 10 11 12 17 18 23 24 | 0.168 | 0.881 |
| Parieto-temporal region | 7 8 9 10 17 18 19 20 21 22 | 0.030 | 0.010 |
| Basal region | 19 20 21 22 25 26 33 34 | 0.020 | 0.198 |