Table 4.
Left hemisphere | Right hemisphere | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
ParlPD | GLM | Between groups | GLM | Between groups | ||||||
F | p | HC vs tAD | HC vs PCA | tAD vs PCA | F | p | HC vs tAD | HC vs PCA | tAD vs PCA | |
Unknown | 7.59 | 0.001* | 0.001* | 0.618 | 0.037 | 1.36 | 0.266 | 0.751 | 0.333 | 0.709 |
Bankssts | 10.39 | 0.000* | 0.008* | 0.000* | 0.277 | 8.69 | 0.001* | 0.144 | 0.000* | 0.032 |
Caudalanteriorcingulate | 1.78 | 0.178 | 0.104 | 0.376 | 0.867 | 3.22 | 0.048 | 0.078 | 0.016 | 0.648 |
Caudalmiddlefrontal | 8.68 | 0.001* | 0.011* | 0.001* | 0.397 | 8.21 | 0.001* | 0.194 | 0.000* | 0.017* |
Cuneus | 12.21 | 0.000* | 0.100 | 0.000* | 0.002* | 10.79 | 0.000* | 0.325 | 0.000* | 0.001* |
Entorhinal | 7.76 | 0.001* | 0.000* | 0.995 | 0.001* | 5.39 | 0.007* | 0.001* | 0.721 | 0.003* |
Fusiform | 2.33 | 0.107 | 0.136 | 0.250 | 0.992 | 4.23 | 0.012* | 0.159 | 0.008* | 0.307 |
Inferiorparietal | 17.05 | 0.000* | 0.011* | 0.000* | 0.002* | 22.08 | 0.000* | 0.050 | 0.000* | 0.000* |
Inferiortemporal | 0.87 | 0.425 | 0.329 | 0.948 | 0.593 | 1.35 | 0.268 | 0.946 | 0.267 | 0.157 |
Isthmuscingulate | 15.45 | 0.000* | 0.012* | 0.000* | 0.005* | 8.87 | 0.000* | 0.068 | 0.000* | 0.105 |
Lateraloccipital | 22.41 | 0.000* | 0.062 | 0.000* | 0.000* | 27.83 | 0.000* | 0.125 | 0.000* | 0.000* |
Lateralorbitofrontal | 3.54 | 0.036 | 0.023 | 0.547 | 0.356 | 7.18 | 0.002* | 0.048 | 0.016* | 0.756 |
Lingual | 15.04 | 0.000* | 0.056 | 0.000* | 0.001* | 11.11 | 0.000* | 0.199 | 0.000* | 0.002* |
Medialorbitofrontal | 0.56 | 0.572 | 0.870 | 0.900 | 1.000 | 2.81 | 0.069 | 0.770 | 0.235 | 0.067 |
Middletemporal | 7.45 | 0.001* | 0.006* | 0.012* | 0.992 | 5.33 | 0.008* | 0.122 | 0.020 | 0.573 |
Parahippocampal | 3.25 | 0.046* | 0.030 | 0.185 | 0.845 | 6.30 | 0.004* | 0.006* | 0.036 | 0.942 |
Paracentral | 4.15 | 0.0021* | 0.515 | 0.006* | 0.072 | 9.77 | 0.000* | 0.233 | 0.000* | 0.007* |
Parsopercularis | 2.37 | 0.103 | 0.055 | 0.482 | 0.607 | 11.30 | 0.000* | 0.189 | 0.003* | 0.138 |
Parsorbitalis | 1.62 | 0.206 | 0.361 | 0.780 | 0.844 | 1.51 | 0.230 | 0.915 | 0.479 | 0.696 |
Parstriangularis | 0.63 | 0.536 | 0.367 | 1.000 | 0.455 | 5.75 | 0.005* | 0.569 | 0.010* | 0.092 |
Pericalcarine | 12.00 | 0.000* | 0.392 | 0.000* | 0.004* | 9.23 | 0.000* | 0.018* | 0.001* | 0.434 |
Postcentral | 11.40 | 0.000* | 0.005* | 0.000* | 0.272 | 12.96 | 0.000* | 0.037 | 0.000* | 0.009* |
Posteriorcingulate | 4.416 | 0.017 | 0.711 | 0.027 | 0.130 | 4.24 | 0.020* | 0.567 | 0.007* | 0.071 |
Precentral | 9.72 | 0.000* | 0.023 | 0.000* | 0.170 | 6.89 | 0.002* | 0.053 | 0.001* | 0.221 |
Precuneus | 13.56 | 0.000* | 0.175 | 0.000* | 0.000* | 10.97 | 0.000* | 0.129 | 0.000* | 0.003* |
Rostralanteriorcingulate | 0.73 | 0.487 | 0.824 | 0.959 | 0.698 | 3.10 | 0.053 | 0.101 | 0.101 | 0.971 |
Rostralmiddlefrontal | 11.46 | 0.000* | 0.006* | 0.002* | 0.739 | 9.93 | 0.000* | 0.017* | 0.000* | 0.275 |
Superiorfrontal | 7.20 | 0.002* | 0.062 | 0.002* | 0.242 | 9.24 | 0.000* | 0.218 | 0.000* | 0.013* |
Superiorparietal | 10.17 | 0.000* | 0.289 | 0.000* | 0.001* | 15.91 | 0.000* | 0.320 | 0.000* | 0.000* |
Superiortemporal | 6.01 | 0.004* | 0.002* | 0.592 | 0.072 | 5.88 | 0.005* | 0.010* | 0.078 | 0.876 |
Supramarginal | 15.67 | 0.000* | 0.001* | 0.000* | 0.115 | 20.86 | 0.000* | 0.050 | 0.000* | 0.000* |
Frontalpole | 2.31 | 0.109 | 0.355 | 0.212 | 0.883 | 2.86 | 0.066 | 0.277 | 0.183 | 0.911 |
Temporalpole | 1.78 | 0.178 | 0.109 | 0.983 | 0.227 | 0.47 | 0.624 | 0.868 | 0.777 | 0.972 |
Transversetemporal | 5.99 | 0.005* | 0.004* | 0.121 | 0.595 | 2.38 | 0.047 | 0.041 | 0.098 | 0.993 |
Insula | 4.26 | 0.019 | 0.020 | 0.128 | 0.871 | 1.83 | 0.170 | 0.427 | 0.275 | 0.900 |
The group differences for ParlPD regional measures, investigated using t tests. All p values remained statistically significant after false discovery rate correction (FDR < 0.05; 210 tests)
HC healthy controls, tAD typical Alzheimer’s disease, PCA posterior cortical atrophy, GLM general linear model, ParlPD the principal diffusion component parallel with the radial minicolumnar direction
* and in bold: Statistically significant difference after false discovery rate correction