Active during childhood: Undercontrolled or extraverted in late adolescence? A longitudinal study distinguishing different conceptions of childhood activity.

The role of childhood activity level in personality development is still poorly understood. Using data from a prospective study following 939 children from age 1.5 to 16.

Understanding trajectories of externalizing problems: Stability and emergence of risk factors from infancy to middle adolescence.

Despite considerable efforts to understand the processes that underlie the development of externalizing behavior problems, it is still unclear why externalizing problems remain chronically high for some children, emerge early and cease by late childhood for others, and arise in adolescence in some cases. The purpose of this study was to examine how a wide range of child and family risk factors are linked to trajectories of externalizing behavior and how these relationships vary from infancy to middle adolescence. We used data from the community-based Norwegian Tracking Opportunities and Problems (TOPP) study sample (n = 921).

Emotions in motion: impact of emotion understanding on children's peer action coordination.

Peer action coordination has been often studied in terms of its underlying cognitive mechanisms, and little is known about its emotional processes. The aim of the present study was to investigate the extent to which children's emotion understanding explains their coordination of actions with a peer in a cooperative sensorimotor problem-solving task. Sixty-eight 5- to 9-year-old children were assessed for their emotion understanding with the Test of Emotion Comprehension (TEC) and for their problem-solving capacities with a sensorimotor task in an individual setting (individual sensorimotor skills) and in a cooperative setting (peer action coordination).

Longitudinal Pathways From Shyness in Early Childhood to Personality in Adolescence: Do Peers Matter?

Temperamental shyness in childhood is theorized to be an important contributor for adolescent personality. However, empirical evidence for such pathways is scarce. Using longitudinal data (N = 939 children, 51% boys) across 17 years, the aim of this study was to examine how shyness development throughout childhood predicted personality traits in adolescence, and the role of peers in these associations.

Nuancing the role of social skills- a longitudinal study of early maternal psychological distress and adolescent depressive symptoms.

Background: Social skills might play an important role for the relationship between maternal psychological distress and subsequent development of depressive symptoms. The majority perspective is that social skills is adaptive and protective, but there is a need to also highlight the potential maladaptive effect of social skills in some settings or for some sub groups. The current study examined the longitudinal interplay between maternal-reported psychological distress in early childhood (age 1.

Predicting Well-Being and Internalizing Symptoms in Late Adolescence From Trajectories of Externalizing Behavior Starting in Infancy.

This study aimed to examine the long-term prediction of well-being and internalizing symptoms from trajectories of externalizing behavior problems in 921 children from a population-based sample. We found that a high stable trajectory of externalizing behavior from infancy (age 1.5) to mid-adolescence (age 14.

Beyond Conceptual Knowledge: The Impact of Children's Theory-of-Mind on Dyadic Spatial Tasks.

Recent studies show that Theory of Mind (ToM) has implications for children's social competences and psychological well-being. Nevertheless, although it is well documented that children overall take advantage when they have to resolve cognitive problems together with a partner, whether individual difference in ToM is one of the mechanisms that could explain cognitive performances produced in social interaction has received little attention. This study examines to what extent ToM explains children's spatial performances in a dyadic situation.

Maternal Psychological Distress and Offspring Psychological Adjustment in Emerging Adulthood: Findings from Over 18 Years.

Objective: To examine the long-term prediction of psychological maladaptive (i.e., symptoms of anxiety and depression) and adaptive adjustment (i.

The impact of maternal smoking during pregnancy on depressive and anxiety behaviors in children: the Norwegian Mother and Child Cohort Study.

Background: Maternal smoking during pregnancy (MSDP) is associated with multiple adverse childhood outcomes including externalizing behaviors. However, the association between MSDP and internalizing (anxiety and depressive) behaviors in offspring has received less investigation. We aimed to assess the association between MSDP and childhood internalizing (anxiety and depressive) behaviors in a very large, well-characterized cohort study.