In the 1970s, Mary Ainsworth introduced three different patterns of mother-child attachment: secure, insecure-avoidant and insecure-ambivalent/resistant attachment. 1 A fourth classification, disorganised attachment was added later and was set in contrast to the organised attachment patterns. Attachment security was associated with important developmental functions such as emotional regulation and social skills competence. 2 Intriguingly, in preterm infants, secure attachment may reduce the risk of behavioural problems and