STUDY OBJECTIVES To examine the patterns of insomnia and sleep-related movement from ages 4.5 to 9 years, their concurrent associations with mental health symptoms in childhood, and the longitudinal associations of sleep-problem persistence with mental health symptoms at ages 9 and 18 years. DESIGN A 14-year prospective follow-up study. Assessments included maternal report on the Children's S...

OBJECTIVE To prospectively examine pathways from early childhood violence exposure and trauma-related symptoms to school-age emotional health. METHODS A longitudinal, birth cohort (N = 437) was assessed with parent reports of lifetime violence exposure and trauma-related symptoms at 3 years of age and later, internalizing and externalizing symptoms, and social competence at school age. RESU...

BACKGROUND Difficult conditions during childhood can limit an individual's development in many ways. Factors such as being raised in an at-risk family, child temperamental traits or maternal traits can potentially influence a child's later behaviour. The present study investigated the extent of regulatory problems in 6-month-old infants and their link to temperamental traits and impact on exter...

BACKGROUND Previous DSM-versions recognized an inhibited and a disinhibited subtype of the Reactive Attachment Disorder (RAD). The current DSM-5 distinguishes two different disorders, instead of two subtypes of RAD. This study examined whether a split-up of the subtypes is valid. METHOD In 126 foster children, attachment disorder symptoms were assessed with the Disturbances of Attachment Inte...

The frequent co-occurrence of antisocial behavior and other disinhibited phenotypes reflects a highly heritable externalizing spectrum. We examined the molecular genetic basis of this spectrum by testing polygenic associations with psychopathology symptoms, impulsive traits, and cognitive functions in two samples of primarily military veterans (n =537, n =194). We also investigated whether poly...

The purpose of the study was to examine the relations of authoritative parenting and corporal punishment to Chinese first and second graders' effortful control (EC), impulsivity, ego resilience, and maladjustment, as well as mediating relations. A parent and teacher reported on children's EC, impulsivity, and ego resilience; parents reported on children's internalizing symptoms and their own pa...

We examine whether parental externalizing behavior has an indirect effect on adolescent externalizing behavior via elevations in life events, and whether this indirect effect is further qualified by an interaction between life events and adolescents' GABRA2 genotype (rs279871). We use data from 2 samples: the Child Development Project (CDP; n = 324) and FinnTwin12 (n = 802). In CDP, repeated me...

Both mothers' and children's exposures to interpersonal violence-including betrayal traumas-are linked with heightened risk for children developing internalizing and externalizing symptoms. Despite this association, little research has examined additional factors that may explain this risk, such as emotion skills. The current study examined the relationship between mother-child emotion understa...

This study investigated the association between reading disability (RD) and internalizing and externalizing psychopathology in a large community sample of twins with (N = 209) and without RD (N = 192). The primary goals were to clarify the relation between RD and comorbid psychopathology, to test for gender differences in the behavioral correlates of RD, and to test if common familial influence...