AIMS To examine the longitudinal associations in both directions between mental health and substance use in adolescence. DESIGN Three-year longitudinal cohort. SETTING Britain (nationally representative sample). PARTICIPANTS 3607 youths aged 11-16 years at baseline. MEASUREMENTS Externalizing and internalizing mental health problems were measured using brief questionnaires (parent-repor...

Externalizing is a broad construct that reflects propensity toward a variety of impulse control problems, including antisocial personality disorder and substance use disorders. Two event-related potential responses known to be reduced among individuals high in externalizing proneness are the P300, which reflects postperceptual processing of a stimulus, and the error-related negativity (ERN), wh...

This study investigated the prospective links between sibling aggression and the development of externalizing problems using a multilevel modeling approach with a genetically sensitive design. The sample consisted of 780 adolescents (390 sibling pairs) who participated in 2 waves of the Nonshared Environment in Adolescent Development project. Sibling pairs with varying degree of genetic related...

This study uses longitudinal population-based samples of young siblings to examine the effects of two hypothesized moderators of early externalizing behaviors: parental emotional support and family socioeconomic status. The first sample, a twin sample from the Early Childhood Longitudinal Study-Birth Cohort (ECLS-B), was composed of approximately 600 twin pairs measured on externalizing at ages...

OBJECTIVE To examine group differences and predictors of externalizing behavior and substance use during the transition to emerging adulthood (i.e., ages 18-25) among survivors of childhood cancer and comparison peers. METHODS Peer acceptance and social behavior were assessed in classrooms of 55 children (ages 8-15) during cancer treatment. Children with cancer, comparison peers (n = 60), and...

Evidence from general population studies shows the contribution of various temperament traits to the development of child psychopathology. Little is known about which traits are associated with internalizing and externalizing problems in young clinically referred children. The current study assessed temperament and internalizing and externalizing problems in 216 referred children (M = 4.35 year...

BACKGROUND Dopaminergic neurotransmission is implicated in externalizing behavior problems, such as aggression and hyperactivity. Externalizing behavior is known to be negatively associated with cognitive ability. Activation of dopamine D4 receptors appears to inhibit the functioning of the prefrontal cortex, a brain region implicated in cognitive ability. The 7-repeat allele of the dopamine D4...

Research on adjustment of internationally adopted children indicates that, although they have adequate development, more emotional and behavioral problems are detected compared with nonadopted children. In this research, emotional and behavioral characteristics of a sample of 52 internationally adopted minors were examined with the BASC (Parent Rating Scales and Self-Report of Personality), com...

This study examined whether maternal functioning mediated the relationship between domestic violence (DV) and infant externalizing behavior. Participants were 203 mother-infant dyads. Support was found for a partially mediated model in which maternal functioning mediated the relationship between current DV and infant externalizing behaviors. Past DV was directly associated with infants' externa...

OBJECTIVES This study compares the behavioral profile of children with fetal alcohol spectrum disorder (FASD) who were diagnosed using the Canadian Guidelines with children with prenatal alcohol exposure who did not meet criteria for a FASD diagnosis. METHODS AND PROCEDURES To accomplish this, we used caregiver and teacher questionnaires evaluating different aspects of behavior. Investigated ...