“…This result reinforced the major role of mother's prenatal depression symptoms on the emergence of further infant's sleep problems (Field et al., 2007; Gerardin et al., 2011; Nevarez et al., 2010). Also, this study adds to previous research on the adverse effects of mother's prenatal depression on infant development (e.g., Figueiredo, Pinto, Pacheco, & Field, 2017; Gentile, 2017; Stein et al., 2014), by reporting the adverse effects on infant's sleep problems. In their turn, infant's sleep problems may contribute to the emergence of mother's postpartum anxiety and depression symptoms (Ystrom, Nilsen, Hysing, Sivertsen, & Ystrom, 2017), which may help to explain the association between mother's prenatal and postpartum depression.…”