Originally, Bowlby’s principal interest was in the life-span development (i.e., continuity and change) of the attachment between emotionally deprived children and their caregivers, including clinical interventions with those individuals. Recently, evidence has been accumulating concerning the influence of the relationship in early childhood between children and their caregivers on the children’s later socio-emotional development, including the quality of later attachment. The present article surveys empirical studies of attachment and its influence during and after middle childhood, and summarizes the results of several longitudinal studies of the stability and change in individual differences in the quality of attachment from infancy to adulthood. Clinical implications of attachment theory are discussed, focusing especially on disorganized/disoriented attachment, attachment disorders, and attachment-based interventions in cases with such difficulties. Critical consideration is given to a dispute as to whether the relationship between Japanese children and their caregivers is unique, and its implications for modern attachment theory. Finally, the review points to some problems in current empirical studies of attachment in Japan.
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