OXT and post-traumatic stress disorder: Data presented in Additional file 1: Table S2 are also presented in Table 2; however, in contrast to Table 2, Additional file 1: Table S2 allows for immediate judgment of the statistical significance of the effects of oxytocin treatment on baseline parameters: intranasal oxytocin treatment elicited a significant elevation in the baseline HR of PTSD patients (Additional file 1: Table S2, p = 0.02) but no significant differences in the other psychophysiological variables tested at baseline (HRV, PEP, RESP) (Additional file 1: Table S2).