Table 7.
Neuroanatomical Correlates of the Executive Composite without the PSP subjects
| Region | MNI coordinates |
Max T | ||
|---|---|---|---|---|
| x | y | z | ||
| Cluster 1 (2,574 mm3; p<.01) | 24 | 31 | 35 | 5.36 |
| Right Frontal | ||||
| middle frontal gyrus | 36 | 36 | 44 | 5.36 |
| superior frontal gyrus | 22 | 33 | 39 | 4.80 |
| anterior cingulate | 6 | 37 | 25 | 4.30 |
| inferior frontal gyrus | 34 | 19 | 31 | 3.77 |
| mid cingulate | 9 | 26 | 34 | 3.61 |
| Cluster 2 (1,049 mm3; p = .02) | −30 | 32 | 29 | 4.11 |
| Left Frontal | ||||
| inferior frontal gyrus, pars triangularis | −38 | 16 | 30 | 4.11 |
| middle frontal gyrus | −27 | 29 | 38 | 3.91 |
| superior frontal gyrus | −24 | 32 | 36 | 3.90 |
| Cluster 3 (769 mm3; p = .03) | −26 | 8 | −36 | 4.04 |
| Left Temporal | ||||
| temporal pole | −22 | 6 | −36 | 4.01 |
| fusiform | −22 | 4 | −41 | 4.01 |
| inferior temporal gyrus | −27 | 4 | −42 | 3.90 |
| Left Frontal | ||||
| inferior frontal gyrus, pars orbitalis | −31 | 27 | −14 | 3.48 |
Results were thresholded at voxelwise p<.001 and corrected for multiple comparisons by permutation analysis. Cluster size was thresholded at p<.05; only clusters greater than 495 mm3 were considered significant. MNI coordinates for the clusters are the center of the mass, whereas MNI coordinates for the regions are the local maxima.