Table 1.
Values of asymmetry index (AI) of significantly asymmetrical ROIs across all subjects (N = 42) – mean (standard deviation). The AI quantifies the hemispheric asymmetry in the ROI connectivity derived from DTI- and DKI-based tractography; positive AI indicates leftward asymmetry, and negative AI indicates rightward asymmetry. The significant asymmetry was determined by comparing the mean AI to zero with the one-sample t-test (two-tailed). The significance level was adjusted with the Bonferroni correction; p-value = 6.17 × 10−4.
| Region | AI
|
p-value (mean AI compared to zero)
|
|||
|---|---|---|---|---|---|
| DTI | DKI | DTI | DKI | ||
| Leftward | |||||
| parstriangularis | 0.42 (0.55) | 0.33 (0.40) | 1.47 × 10−5 | 4.40 × 10−6 | |
| parsopercularis | 0.53 (0.43) | 0.33 (0.34) | 9.36 × 10−10 | 2.29 × 10−7 | |
| precentral | 0.31 (0.31) | 0.24 (0.26) | 8.23 × 10−8 | 4.74 × 10−7 | |
| postcentral | 0.30 (0.34) | 0.25 (0.29) | 1.63 × 10−6 | 3.01 × 10−6 | |
| supramarginal | 0.33 (0.31) | 0.38 (0.31) | 2.53 × 10−8 | 6.68 × 10−10 | |
| inferiorparietal | 0.23 (0.35) | 0.29 (0.31) | 7.79 × 10−5 | 3.24 × 10−7 | |
| middletemporal | 0.40 (0.28) | 0.34 (0.22) | 1.30 × 10−11 | 1.24 × 10−12 | |
| superiortemporal | 0.28 (0.25) | 0.16 (0.24) | 4.82 × 10−9 | 8.44 × 10−5 | |
| transversetemporal | 0.69 (0.49) | 0.60 (0.55) | 2.56 × 10−11 | 1.17 × 10−8 | |
| insula | 0.36 (0.29) | 0.26 (0.29) | 6.42 × 10−10 | 5.81 × 10−7 | |
| lateralorbitofrontal | 0.29 (0.32) | 7.05 × 10−7 | |||
| inferiortemporal | 0.18 (0.29) | 2.16 × 10−4 | |||
| Rightward | |||||
| superiorfrontal | −0.25 (0.21) | −0.24 (0.17) | 2.37 × 10−9 | 1.34 × 10−11 | |
| rostralanteriorcingulate | −0.46 (0.61) | −0.28 (0.48) | 1.47 × 10−5 | 4.00 × 10−4 | |
| fusiform | −0.27 (0.40) | −0.31 (0.28) | 1.00 × 10−4 | 8.08 × 10−9 | |
| putamen | −0.19 (0.25) | −0.20 (0.28) | 1.34 × 10−5 | 3.47 × 10−5 | |
| parahippocampal | −0.37 (0.50) | 2.66 × 10−5 | |||