Reactive attachment disorder

Reactive attachment disorder (RAD) is an attachment disorder characterized by markedly disturbed and developmentally inappropriate ways of relating socially in most contexts. RAD primarily affects children, although these issues do occasionally persist into adulthood. It can take the form of a persistent failure to initiate or respond to most social interactions in a developmentally appropriate way—known as the "inhibited form". In the DSM-5, the "disinhibited form" is considered a separate diagnosis named "disinhibited social engagement disorder". RAD arises from a failure to form normal attachments to primary caregivers in early childhood. Such a failure could result from severe early experiences of neglect, abuse, abrupt separation from caregivers between the ages of six months and three years, frequent changes of caregivers, or a lack of caregiver responsiveness to a child's communicative efforts. It is differentiated from pervasive developmental disorder or developmental delay and from possibly comorbid conditions such as intellectual disability, all of which can affect attachment behavior. The criteria for a diagnosis of reactive attachment disorder are very different from the criteria used in assessment or categorization of attachment styles, such as insecure or disorganized attachment. Children with RAD are presumed to have grossly disturbed internal working models of relationships that may lead to interpersonal and behavioral difficulties in later life. There are few studies of long-term effects, and there is a lack of clarity about the presentation of the disorder beyond the age of five years. However, the opening of orphanages in Eastern Europe following the end of the Cold War in the early 1990s provided opportunities for research on infants and toddlers brought up in very deprived conditions. Such research broadened the understanding of the prevalence, causes, mechanisms and assessment of disorders of attachment and led to efforts from the late 1990s onwards to develop treatment and prevention...