“…Decades of empirical research have provided overwhelming support for the classic notion that early parent-child relationships exert an exceptional influence on child development. As documented by longitudinal studies spanning infancy to early adulthood (Fraley, Roisman, & Haltigan, 2013; Grossmann, Grossmann, & Waters, 2005; Jaffee, Caspi, Moffitt, Belsky, & Silva, 2001), by meta-analytic reviews (Fearon, Bakermans-Kranenburg, Van IJzendoorn, Lapsley, & Roisman, 2010; Groh, Roisman, Van Ijzendoorn, Bakermans-Kranenburg, & Fearon, 2012; Pallini, Baiocco, Schneider, Madigan, & Atkinson, 2014), and by experimental studies (Guttentag et al, 2014; Kochanska, Kim, Boldt, & Nordling, 2013), the quality of caregiving relationships forecasts child outcomes as diverse as social and emotional adjustment (see Thompson, 2008), moral development (Dunn, Brown, & Maguire, 1995), cognitive functioning (Tamis-LeMonda, Bornstein, & Baumwell, 2001), sleep/wake cycles (Bordeleau, Bernier, & Carrier, 2012), and sympathetic and parasympathetic response (Luijk et al, 2010). Such pervasive effects on socio-emotional, cognitive and biological functioning are often believed to transit through children's neural circuitry (Belsky & de Haan, 2011; Gunnar, 2003).…”