Table 3a.
Multiple regression analysis of the relationships between IQ and diffusion metrics of all brain regions in the AAL atlas.
| Regions | Effect | 95% CI | P |
|---|---|---|---|
| IQ – White matter MD | |||
| Anterior limb of internal capsule | -71.83 | (-31.02, -112.65) | <0.01 |
| Superior fronto-occipital fasciculus | -34.14 | (-13, -55.28) | <0.01 |
| Uncinate fasciculus | -56.25 | (-18.02, -94.48) | <0.01 |
| Anterior corona radiata | -115.27 | (-33.36, -197.19) | <0.05 |
| Cingulum cingulate | -116.68 | (-10.15, -223.21) | <0.05 |
| Cingulum hippocampus | -50.34 | (-1.74, -98.95) | <0.05 |
| IQ – White matter MK | |||
| Superior fronto-occipital fasciculus | 73.37 | (122.1, 24.64) | <0.01 |
| IQ – Grey matter MD | |||
| Heschl’s gyrus | -41.04 | (-14.58, -67.5) | <0.01 |
| Insula | -64.02 | (-22.2, -105.85) | <0.01 |
| Parahippocampal gyrus | -70.34 | (-24.28, -116.39) | <0.01 |
| Caudate | -27.81 | (-7.5, -48.13) | <0.05 |
| Olfactory | -42.41 | (-10.11, -74.71) | <0.05 |
| Anterior cingulum | -71.1 | (-16.75, -125.44) | <0.05 |
| Hippocampus | -29.31 | (-5.25, -53.36) | <0.05 |
| Middle frontal orbital gyrus | -58.83 | (-9.44, -108.23) | <0.05 |
| Precentral gyrus | -53.16 | (-8.26, -98.06) | <0.05 |
| Frontal inferior operculum | -55.91 | (-8.24, -103.57) | <0.05 |
| Cuneus | -41.52 | (-4.45, -78.6) | <0.05 |
| Superior temporal gyrus | -45.72 | (-2.67, -88.77) | <0.05 |
| Superior frontal orbital gyrus | -38.18 | (-1.83, -74.54) | <0.05 |
| Middle temporal gyrus | -74.86 | (-3.17, -146.55) | <0.05 |
MD, mean diffusivity; MK, mean kurtosis.