... Despite differences in methodology, a growing body of research supports the presence of an attention bias to infant versus non-infant cues in adults (e.g., Brosch et al., 2008;Chang & Thompson, 2011;Colasante, Mossad, Dudek, & Haley, 2016;Hechler, Beijers, & de Weerth, 2015;Sander et al., 2005), with a stronger bias seen in parents compared to non-parents (e.g., Barrett et al., 2012;Brosch et al., 2008;Doi & Shinohara, 2012;Kim et al., 2011;Kim, Strathearn, & Swain, 2016;Musser, Kaiser-Laurent, & Ablow, 2012;Oliveira et al., 2017;Peltola et al., 2014;Proverbio, Brignone, Matarazzo, Del Zotto, & Zani, 2006;Thompson-Booth et al., 2014a, 2014b; for a review see Kim et al., 2016;Lucion et al., 2017), and with mixed evidence that valence of infant cues differentially modulates attention bias (e.g., Dudek, Faress, Bornstein, & Haley, 2016;Oliveira et al., 2017;Pearson, Cooper, Penton-Voak, Lightman, & Evans, 2010;Seifritz et al., 2003;Thompson-Booth et al., 2014a, 2014b. Importantly, this work suggests that heightened processing of infant cues in postpartum women is linked to more sensitive parenting behaviours (Atzil, Hendler, & Feldman, 2011;Barrett et al., 2012;Bernard, Simons, & Dozier, 2015;Hipwell, Guo, Phillips, Swain, & Moses-Kolko, 2015;Kim et al., 2011;Musser et al., 2012;Noriuchi, Kikuchi, & Senoo, 2008;Rodrigo et al., 2011;Rutherford, Maupin, Landi, Potenza, & Mayes, 2017;Wan et al., 2014). Given the well-documented importance in establishing a sensitive mother-infant relationship, exploring early indicators of this developing relationship is of critical significance. ...