Table 2.
Clusters showing significant IQ group differences in men in fractional anisotropy (FA), radial diffusivity (RD), and axial diffusivity (AD). More intelligent men generally showed higher FA and lower RD, but no differences in AD.
| Voxel | X | Y | Z | p | Tract | |
|---|---|---|---|---|---|---|
| FA | 1113 | 105 | 153 | 91 | .01 | Genu of Corpus Callosum Left |
| 304 | 74 | 157 | 85 | .03 | Genu of Corpus Callosum Right | |
| 70 | 75 | 122 | 106 | .04 | Body of Corpus Callosum Right | |
| RD | 893 | 105 | 153 | 91 | .02 | Genu of Corpus Callosum Left |
| 202 | 75 | 157 | 86 | .04 | Genu of Corpus Callosum Right | |
| AD | – | – | – | – | – | – |