Moreover, mothers who actively engage in live infant-directed vocal interaction showed reduced levels of anxiety (Arnon et al., 2014), increased synchrony with their baby (Palazzi et al., 2020) and higher oxytocin levels (Filippa et al., 2023a; Filippa et al., 2023b; Hirschel et al., 2023), with potential knock-on effects on their sensitivity. Here, OXT is linked to Anxiety.