Objective: To chart the emergence of precursors and early signs of autism spectrum disorder (ASD) and autistic traits in the Avon Longitudinal Study of Parents and Children, a prospective longitudinal cohort study of the surviving offspring of 14,541 pregnant women from southwestern England with an expected delivery date between April 1991 and…

In chapter IV, the authors focused on their findings on the developmental course of deprivation-specific psychological patterns (DSPs). The authors rediscussed the syndrome concept in the light of two main considerations. First, the findings indicated substantial overlap among the four postulated DSPs at 15 years including CI and I/O before…