Table 1.
Lobes | Left Hemisphere |
Right Hemisphere |
L v. R |
||||
---|---|---|---|---|---|---|---|
Frontal | Temporal | Occipital/Parietal | Frontal | Temporal | Occipital/Parietal | ||
Low | |||||||
GM | 5795 (449) | 5996 (342) | 8063 (553) | 5869 (406) | 6078 (313) | 8073 (580) | L < R (p = .01) |
WM | 2438 (250) | 2154 (171) | 3432 (304) | 2468 (250) | 2217 (175) | 3503 (293) | L < R (p < .001) |
High | |||||||
GM | 5550 (669) | 5877 (581) | 7800 (967) | 5619 (674) | 5909 (617) | 7683 (967) | L = R |
WM | 2344 (240) | 2067 (188) | 3296 (275) | 2372 (231) | 2092 (202) | 3341 (300) | L < R (p < .001) |
Data are presented as means and SD, prior to correction for intracranial volume (ICV). Statistical comparisons of hemispheric volumes were calculated using ICV as a covariate. Gray matter (GM), white matter (WM), left (L), right (R).