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. 2020 Aug 8;268(1):227–239. doi: 10.1007/s00415-020-10109-w

Table 4.

ParlPD regional differences

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