Based on significant correlations between overall PTSD-like symptom score and the number of active neurons in the vDG during the trauma and trigger exposure (i.e., number of tdTomato positive cells; ρ(14) = 0.703, p = 0.005), as well as the number of somatostatin neurons within the vDG (ρ(13) = 0.623, p = 0.023), we additionally analyzed the brains of 17 animals that showed an intermediate PTSD phenotype (1 ≤ PTSD-like symptom score ≤ 4). Here, SST is linked to post-traumatic stress disorder.