This article suggests that ideas about adolescent brains and their development increasingly function as powerful truths in making sense of young people. In this context, the knowledge practices of the neurosciences and evolutionary and developmental psychology are deemed capable of producing what we have come to understand as the evidence on which…

It has been argued that peers are the most important agent of adolescent socialization and, more specifically, that this socialization process occurs at the child-specific (or nonshared environmental) level (J. R. Harris, 1998; R. Plomin & Asbury, 2005). The authors sought to empirically evaluate this nonshared environmental peer influence…

Individuals with Down syndrome are predisposed to show a specific behavioural phenotype, or a pattern of strengths and challenges in functioning across different domains of development. It is argued that a developmental approach to researching the Down syndrome behavioural phenotype, including an examination of the dynamic process of the unfolding…

Seeks to review varied meanings regression has held within psychoanalytic and developmental literatures; focus on the forms, frequencies, and functions of regression when examining data from two structural developmental models addressing dimensions of normative adolescent identity development; and consider precipitants for different forms of…

This paper deals with the role of the child developmentalist in improving interdisciplinary assessment and treatment of children with behavioral and learning problems. A specific task of Developmental Services of the Texas Research Institute of Mental Sciences was to optimize the utilization of professional staff in a development assessment…