Significant group difference in GM volume.

<p># Cluster showing a significant group difference when using a limbic mask comprising the anterior cingulate cortex, the mPFC, the insular cortex, the hippocampus and the amygdala, using peak threshold at p = 0.001, FDR corrected at p<0.05. The other clusters were calculated with same level of significance, but using the entire brain as search space (no a priori hypothesis).</p><p>No group differences were observed in white matter volumes and no significant clusters were detected when reversing the contrast (using the contrast: stressed patients – controls).