There is a very substantial literature over the past 50 years on the advantages of early detection and intervention on the cognitive, communicative, and social-emotional development of infants and toddlers at risk for developmental delay due to premature birth or social disadvantage. Most of these studies excluded children with severe delays or…

Developmental science integrates concepts from developmental medicine, human genetics, developmental and clinical psychology to understand behavioural adjustment and maladjustment in children, adolescents and adults as a product of the transactions between the child, its biological organization and its social experience. Put into such a…