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PTSD prevalence.
| Brain damage | PTSD prevalence |
|---|---|
| Amygdala | 0% |
| vmPFC | 18% |
| non-vmPFC/non-Amygdala | 40% |
| No brain damage | 48% |
A chi-square frequency analysis of the three groups of brain-injured veterans indicated a significant effect of lesion location on PTSD prevalence (X2=14.7; p=.0006). p-values for individual pairwise comparisons are summarized in Supplementary Table 2.
