Adolescent risky behaviors are often interpreted as products of self-control failures stemming from a developmental mismatch between reward processing and cognitive control systems. However, adolescents -- much like adults -- may also engage in risky behaviors because of conscious and deliberate (even if objectively poor) decisions. It is not easy…

Background: Specific learning experiences are vital for athletes to continuously interact with developing "knowledge of" the performance environment, through the refined design of representative learning contexts (ecological paradigm), and appropriate didactical interventions (constructivist paradigm). Although there is a…

The purpose of the current study was to use the infant sibling design to explore whether proband traits of autism and ADHD could provide information about their infant sibling's temperament. This could help us to gain information about the extent to which infant temperament traits are differentially associated with autism and ADHD traits. We used…

Experiences of and exposures to violence impact older adolescents and young adults in a myriad of ways. While typically conceptualized as interpersonal, other forms of violence, namely structural and symbolic, can be harmful to development for this population. This study utilized qualitative methodologies, including ethnographic field notes and…

Klinefelter syndrome (47,XXY) is associated with problems in social interaction and behavioral adaptation. Sixteen adolescents and adult men with 47,XXY enrolled in a pilot-study evaluating the effectiveness of Social Management Training (SMT), a novel neurocognitive-behavioral treatment program targeted at improving social, emotional, and…

To date, studies using cross-sectional methodologies make up a majority of the literature surrounding children with autism spectrum disorders and participation in physical activity and screen time. Longitudinal studies are needed to examine how physical activity and screen time behaviors co-develop for children with and without an autism spectrum…

Background: School-based physical education has been associated with a multitude of potential learning outcomes. Representatives of a public health perspective suggest that promoting physical activity in and outside the context of school is an important endeavour. While the importance of behavioural skill training to improve (motor) learning is…