Table 6.
Cerebral asymmetry
| Brain volume | Left mean (SD) | Right mean (SD) | AI, L > R % | t | p | p (REL) |
|---|---|---|---|---|---|---|
| TGM (cm3) | 119.2 (12.4) | 119.2 (12.4) | − 0.038 | − 0.43 | – | – |
| Frontal (cm3) | 39.0 (4.6) | 39.2 (4.6) | − 0.263 | − 1.93 | – | – |
| Parietal (cm3) | 21.3 (2.4) | 21.0 (2.4) | 0.899 | 3.05 | 0.003* | 0.003* |
| Temporal (cm3) | 21.4 (2.3) | 25.2 (2.8) | − 8.131 | − 32.93 | < 0.0001* | < 0.0001* |
| Occipital (cm3) | 33.8 (4.0) | 25.0 (2.9) | 16.282 | 51.91 | < 0.0001* | < 0.0001* |
Comparison between left and right hemisphere. p values are derived from one sample t test. Significance level (p < 0.05) is marked by an asterisk. Bonferroni correction for multiple comparisons corresponding to p < 0.01. p values meeting the significance criteria are bolded
AI Asymmetry Index, TBV total brain volume, TGM total gray matter volume, p(REL) TGM controlled with TBV and lobar volumes with TGM; – non-significant