Recent advances in research on school-based extracurricular activities and adolescent development

Updating a previous systematic review of the literature, this review summarizes the literature over the last 5 years on the relationship between school-based extracurricular activity participation and academic achievement, substance use, sexual activity, psychological adjustment, and delinquency. The review also considers mediators and moderators of these relationships. This review also discusses recent advances in activity research including participation measurement (intensity, breadth, and duration), person-centered approaches, and an exploration of the overscheduling hypothesis. The review reveals a mixed picture of the relationship between activity participation and these adolescent developmental outcomes. A call for continued exploration into measurement issues, analysis approaches, outcome measures, and causal models of activities and adolescent functioning is made.     

The influence of motivational and mood states on visual attention: A quantification of systematic differences and casual changes in subjects' focus of attention

A great number of studies have shown that different motivational and mood states can influence human attentional processes in a variety of ways. Yet, none of these studies have reliably quantified the exact changes of the attentional focus in order to be able to compare attentional performances based on different motivational and mood influences and, beyond that, to evaluate their effectivity. In two studies, we explored subjects' differences in the breadth and distribution of attention as a function of motivational and mood manipulations. In Study 1, motivational orientation was classified in terms of regulatory focus (promotion vs. prevention) and in Study 2, mood was classified in terms of valence (positive vs. negative). Study 1 found a 10% wider distribution of the visual attention in promotion-oriented subjects compared to prevention-oriented ones. The results in Study 2 reveal a widening of the subjects' visual attentional breadth when listening to happy music by 22% and a narrowing by 36% when listening to melancholic music. In total, the findings show that systematic differences and casual changes in the shape and scope of focused attention may be associated with different motivational and mood states.