Table 1.
Brain areas with significant gray matter correlations (p < .001 uncorrected) with each intelligence factor (all correlations are positive except for the Memory factor)*
| Factor Name | B A | Region Name | x | y | z | Z | Cluster | FDR |
|---|---|---|---|---|---|---|---|---|
| g-factor (+) | BA 9 | Middle Frontal Gyrus | -36 | 23 | 30 | 4.02 | 165 | |
| Substania Nigra | 12 | -22 | -7 | 3.17 | 272 | |||
| Speed of Reasoning (+) | BA 37 | Sub-Gyral | 48 | -45 | -5 | 3.47 | 895 | |
| BA 47 | Inf. Frontal Gyrus | -50 | 42 | -16 | 3.08 | 35 | ||
| BA 10 | Inf. Frontal Gyrus | 57 | 41 | -2 | 3.07 | 66 | ||
| BA 38 | Sup. Temporal Gyrus | -42 | 5 | -17 | 3.03 | 416 | ||
| BA 31 | Posterior Cingulate | -24 | -63 | 14 | 3.03 | 700 | ||
| BA 18 | Lingual Gyrus | 30 | -74 | -8 | 2.97 | 147 | ||
| Inf. Semi-Lunar Lob. | 6 | -65 | -49 | 3.59 | 598 | |||
| Numerical Factor (+) | BA 18 | Mid. Occipital Gyrus | 26 | -81 | 6 | 3.16 | 76 | |
| BA 24 | Cingulate Gyrus | -12 | 2 | 31 | 3.03 | 33 | ||
| Spatial Factor (+) | BA 8 | Mid. Frontal Gyrus | -30 | 14 | 40 | 3.64 | 186 | |
| Lat. Geniculum Body | -26 | -23 | -2 | 3.03 | 178 | |||
| Memory Factor (-) | BA 17 | Cuneus | 24 | -91 | 1 | 4.29 | 12,856 | .025 |
| BA 19 | Mid. Occipital Gyrus | 28 | -81 | 15 | 4.21 | .025 | ||
| BA 18 | Lingual Gyrus | 14 | -68 | 5 | 4.21 | .025 | ||
| BA 31 | Cingulate Gyrus | 20 | -47 | 23 | 3.66 | 136 | .025 | |
| BA 37 | Sub-Gyral | -50 | -45 | -8 | 3.52 | 371 | .025 | |
| BA 47 | Inf. Frontal Gyrus | -50 | 38 | -17 | 3.51 | 196 | .028 | |
| BA 32 | Anterior Cingulate | 10 | 30 | -12 | 3.46 | 5,131 | .030 | |
| BA 11 | Sup. Frontal Gyrus | -16 | 54 | -15 | 3.30 | .037 | ||
| BA 11 | Med. Frontal Gyrus | -6 | 61 | -17 | 3.28 | .037 | ||
| BA 21 | Mid. Temporal Gyrus | -44 | 2 | -34 | 3.27 | 737 | .038 | |
| BA 38 | Sup. Temporal Gyrus | -34 | 6 | -27 | 3.03 | |||
| BA 3 | Postcentral Gyrus | 57 | -18 | 29 | 2.74 | |||
| BA 10 | Mid. Frontal Gyrus | -30 | 52 | 1 | 3.13 | 140 | .046 | |
| BA 46 | Inf. Frontal Gyrus | 55 | 43 | 2 | 3.11 | 104 | .048 | |
| BA 43 | Postcentral Gyrus | 69 | -9 | 17 | 2.98 | 136 | ||
| Thalamus | -24 | -23 | 1 | 3.01 | 752 | |||
| Thalamus | -16 | -31 | 2 | 2.98 | ||||
* BA is Brodmann Area, Talairach x, y, z co-ordinates; positive × values are in right hemisphere; Z is z-score; cluster size is number of voxels (blank entry denotes part of previous cluster); FDR is False Discovery Rate (blank entry denotes not significant p < .05).