Background: It is well-established that children and adolescents with developmental language disorder (DLD) have social-emotional difficulties. This is reflected in their behaviour, for instance, by (social) withdrawal, hyperactivity or difficulty with peer relations. Children with DLD are also known to have poorer quality of life (QoL). This is…

Background: Adaptation is key to survival. An organism must adapt to environmental challenges in order to be able to thrive in the environment in which they find themselves. Resilience can be thought of as a measure of the ability of an organism to adapt, and to withstand challenges to its stability. In higher animals, the brain is a key player in…

The structure of the human brain changes in several ways throughout childhood and adolescence. Perhaps the most salient of these changes is the strengthening of white matter tracts that enable distal brain regions to communicate with one another more quickly and efficiently. Here, we sought to understand whether and how white matter changes…

In this article, we contrast evolutionary and psychobiological models of individual development to address the idea that individual development occurring in prototypically risky and unsupportive environments can be understood as adaptation. We question traditional evolutionary explanations of individual development, calling on the principle of…

The authors examined internalizing behavior problems at middle childhood, adolescence, and young adulthood and brain-based measures of stress vulnerability in 154 right-handed, nonimpaired young adults (M age = 23 years): 71 (30 males, 41 females) born at extremely low birth weight (ELBW; less than 1,000 g) and 83 (35 males, 48 females) controls…

Eye gaze plays a pivotal role during communication. When interacting deceptively, it is commonly believed that the deceiver will break eye contact and look downward. We examined whether children's gaze behavior when lying is consistent with this belief. In our study, 7- to 15-year-olds and adults answered questions truthfully ("Truth" questions)…

Aim: Prader-Willi syndrome (PWS) is a genetic disorder historically characterized by two phenotypic stages. The early phenotype in infants is associated with hypotonia, poor suck, and failure to thrive. In later childhood, PWS is associated with intellectual disability, hyperphagia, as well as growth and sex hormone deficiency. Little is known…

Aggressive behaviors in children and adolescents have undergone important conceptual and definitional modifications in the past two decades. In particular, subtypes of aggression have been proposed that separate the form and the function of the aggressive behaviors (i.e., social vs. physical aggression; reactive vs. proactive aggression).…

This article seeks evidence for a developmental process in childhood deviance. (Author)

This article describes the average and group-based developmental trajectories of aggression, opposition, property violations, and status violations using parent reports of externalizing behaviors on a longitudinal multiple birth cohort study of 2,076 children aged 4 to 18 years. Trajectories were estimated from multilevel growth curve analyses and…

A pair of 9-year-old boys with socioemotional and interpersonal difficulties was observed unobtrusively in 35 weekly hour-long therapy sessions over the course of 2 school years. A transcript/narrative analysis technique was used to identify all interpersonal negotiation strategies each child used within each session. Strategies were classified…

Examines the biological, psychological, and social developmental changes that characterize the years from 6 to 14, and highlights ways in which the organization of programs, schools, and family life can support positive outcomes for youth. In these years children forge a personal identity and form a self-concept and orientation toward achievement…

Competence in action perception seems to be achieved very early in life. Because research has indicated that competent perceivers of action must be able to discriminate breakpoints in behavior, then recognition memory for breakpoints should be superior to that for nonbreakpoints at all ages where competence in action perception exists. Two studies…

The study reported in this paper traces the nature of the changes which take place as the child gradually acquires perspective-taking skills. The results indicate that at first the young child can correctly represent only the location of the object nearest another observer; later, he can correctly represent a before-behind relationship between…

Examines the reactions of children in grades 3-4, 7-8, and 11-12 to boys and girls whose behavior was either masculine-stereotyped or feminine-stereotyped along the dimensions of steadiness/excitability, adventurousness/timidity, and rudeness/politeness. (Author/HOD)