Reflecting the enormous changes that have taken place in our knowledge and understanding of developmental disorders, this groundbreaking international volume brings this vast and complex field together for the first time. The editors have collected together the world’s leading academic scholars and clinicians, to explore how current research across a range of different disciplines can inform academic knowledge and clinical practice and help to improve the lives of individuals and their families.The SAGE Handbook of Developmental Disorders is a central reference in the field for all academics, researchers, clinicians and advanced students involved in the study of developmental disorders, including those in clinical psychology, child psychiatry, child mental health, child genetics and pediatrics, speech language pathology, and developmental disabilities and special education.
In contrast to other chapters in this handbook, we face a problem in defining the topic. Thus, what is meant by ‘extreme deprivation’, and what is meant by syndromes due to such deprivation? In neither case, does the research literature, or indeed the clinical literature, help very much. As the title of the handbook refers to ‘developmental disorders’, we have mainly focused on research that involves longitudinal data providing evidence on within-individual changes over time. We have assumed that the term ‘deprivation’ implies the consequences of a lack of relevant experiences, rather than the much broader topic of acute and chronic stresses and adversity. Accordingly, we have excluded from our remit any discussion of syndromes associated with sexual or physical abuse ...