“…have an impact on this dyad (Abidin, 1999). Maternal stress and maternal psychiatric well-being is associated with young children's behavioural development, such as greater infant reactivity to novelty, externalising and internalising behavioural problems, and motivation and competence in social situations (Keim et al, 2011;Mäntymaa et al, 2012;Saisto, Salmela-Aro, Nurmi, & Halmesmäki, 2008;Sparks, Hunter, Backman, Morgan, & Ross, 2012;Yaman, Mesman, van Ijzendoorn, & Bakermans-Kranenburg, 2010;Werner et al, 2012). Maternal distress may increase negative judgments about infant behaviour, and mothers reporting high parenting stress may be less responsive ('sensitive') to their infants' needs/demands (Pereira et al, 2012;Werner et al, 2012).…”