Table 3.
Brain regions with abnormal ALFF in patients with PSI.
| Brain regions | Voxels | Peak MNI coordinates | T-value | ||
|---|---|---|---|---|---|
| X | Y | Z | |||
| Cluster 1 | 61 | 66 | −12 | −27 | 6.42 |
| Middle temporal gyrus (R) | 36 | ||||
| Inferior temporal gyrus (R) | 23 | ||||
| Cluster 2 | 64 | 48 | 36 | −12 | 6.17 |
| Inferior frontal gyrus (orbital) (R) | 36 | ||||
| Inferior frontal gyrus (triangular) (R) | 27 | ||||
| Cluster 3 | 72 | 15 | −51 | −9 | −5.28 |
| Lingual gyrus(R) | 57 | ||||
| Cluster 4 | 59 | −18 | −60 | −6 | −5.51 |
| Lingual gyrus (L) | 55 | ||||
| Cluster 5 | 74 | 3 | −57 | 18 | 5.03 |
| Limbic lobe (R) | 52 | ||||
| Precuneus (R) | 31 | ||||
| Posterior cingulate gyrus (L) | 15 | ||||
| Cluster 6 | 103 | −60 | 54 | 27 | 6.66 |
| Middle temporal gyrus (L) | 35 | ||||
| Middle occipital gyrus (L) | 17 | ||||
ALFF, amplitude of low-frequency fluctuations; MNI, Montreal Neuroscience Institute; L, left; R, right. A positive T value indicates that the ALFF value of the PSI group is higher than that of the HCs. AAL templates were used to localize the brain regions.