Bowlby's attachment theory has inspired a dramatic shift in the way we unde
rstand the development of the early relationship between infant and caregiv
er(s). Though almost all infants develop an attachment relationship to thei
r primary caregiver(s), not all of them are able to use their caregiver(s)
as a secure base or haven of safety from which to explore the world. Mary A
insworth was the first to describe in detail the aspects of the caregiving
system that are most important for the development of the attachment relati
onship. During the last decade several studies have started to evaluate the
possibility that insensitive and perhaps even inadequate parenting can be
effectively ameliorated by interventions. The present article sketches the
theory behind attachment-based interventions and reviews the evidence for t
he effectiveness of such interventions. Finally, the article gives examples
of successful preventive as well as therapeutic interventions.