Table 2.
Results of the volume-of-interest (VOI) analysis separately for groups, contrasts, and volumes.
| Contrast | VOI | ALL |
PTSD |
Non-PTSD |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MNI | t | p | MNI | t | p | MNI | t | p | ||
| VBM SDS− | L amy | −30 −3 −22 | 3.43 | 0.013 | −30 −3 −19 | 3.17 | 0.045 | – | – | – |
| R amy | 35 −2 −24 | 4.82 | 0.001 | 34 −1 −22 | 5.23 | 0.002 | 28 4 −29 | 3.85 | 0.023 | |
| L hippo | −32 −6 −21 | 3.52 | 0.037 | −34 −10 −16 | 3.31 | 0.057 | – | – | – | |
| R hippo | 35 −4 −22 | 4.60 | 0.003 | 35 −4 −22 | 4.61 | 0.016 | – | – | – | |
| L ACC | – | – | – | – | – | – | – | – | – | |
| R ACC | 15 25 21 | 4.31 | 0.007 | 11 25 17 | 5.57 | 0.004 | – | – | – | |
| SPECT SDS− | L amy | – | – | – | – | – | – | – | – | – |
| R amy | – | – | – | – | – | – | – | – | – | |
| L hippo | – | – | – | – | – | – | – | – | – | |
| R hippo | – | – | – | – | – | – | – | – | – | |
| L ACC | 2 42 14 | 3.71 | 0.025 | 0 42 16 | 4.90 | 0.015 | – | – | – | |
| R ACC | 4 42 12 | 3.66 | 0.024 | 8 40 10 | 4.86 | 0.013 | – | – | – | |
| SPECT SDS+ | L amy | – | – | – | – | – | – | – | – | – |
| R amy | – | – | – | – | – | – | – | – | – | |
| L hippo | – | – | – | – | – | – | – | – | – | |
| R hippo | – | – | – | – | – | – | – | – | – | |
| L ACC | – | – | – | – | – | – | – | – | – | |
| R ACC | – | – | – | – | – | – | – | – | – | |
ALL, whole sample (n = 37); SDS+/−, positive/negative correlations with the sleep disturbances score; L/R, left/right; amy, amygdala; hippo, hippocampus; ACC, anterior cingulate cortex; MNI, Montreal Neurological Institute coordinates (x, y, z); t, Student’s t-statistic; p, small-volume corrected significance at peaks (FWE-corrected).