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Age of cannabis use onset and adult drug abuse symptoms : a prospective study of common risk factors and indirect effects
(SAGE, 2018-04-22)
Objective: The present study examined (1) whether the associations between cannabis use
(CU) age of onset and drug abuse by 28 years remain when controlling for risk factors in
childhood, adolescence and early adulthood; ...
Associations between daily mood states and brain gray matter volume, resting-state functional connectivity and task-based activity in healthy adults
(Frontiers Media, 2018-05-01)
Numerous studies have shown differences in the functioning in the areas of the frontal-limbic circuitry between depressed patients and controls. However, current knowledge on frontal-limbic neural substrates of individual ...
Links between friends' physical aggression and adolescents' physical aggression : what happens if gene-environment correlations are controlled?
(Sage, 2016-05)
Exposure to deviant friends has been found to be a powerful source of influence on children’s and adolescents’ aggressive behavior. However, the contribution of deviant friends may have been overestimated because of a ...
A prospective, longitudinal, study of men with borderline personality disorder with and without comorbid antisocial personality disorder
(BMC, 2017-12)
Background: Some evidence suggests that the prevalence of Borderline Personality Disorder (BPD) is elevated among
male criminal offenders. It is not presently known whether offending, and violent offending, are limited to ...
Early warm-rewarding parenting moderates the genetic contributions to callous-unemotional traits in childhood
Warm-rewarding genetic callous-unemotional
(Wiley, 2018-04-23)
Background
Previous gene–environment interaction studies of CU traits have relied on the candidate gene approach, which does not account for the entire genetic load of complex phenotypes. Moreover, these studies have not ...
A longitudinal twin study of callous-unemotional traits during childhood
Longitudinal twin callous-unemotional, 1
(American Psychological Association, 2018-05)
Previous research indicates that genetic factors largely account for the stability of callous-unemotional (CU) traits in adolescence. However, the genetic-environmental etiology of the development of CU traits has not been ...
The expression of genetic risk for aggressive and non-aggressive antisocial behavior is moderated by peer group
(Springer, 2015-07)
Numerous studies have shown that aggressive and non-aggressive antisocial behaviors are important precursors of later adjustment problems. There is also strong empirical evidence that both types of antisocial behavior are ...
The genetic and environmental etiology of the association between vocabulary and syntax in first grade
Etiology of vocabulary and syntax
(Taylor & Francis, 2018-03-09)
This study examined the genetic and environmental etiology of vocabulary, syntax, and their association in first graders. French-speaking same-sex twins (N = 555) completed two vocabulary tests, and two scores of syntax ...
Twin classroom dilemma : to study together or separately?
(American Psychological Association, 2018-07)
There is little research to date on the academic implications of teaching twins in the same or different classroom. Consequently, it is not clear whether twin classroom separation is associated with positive or negative ...
Heterogeneity in the development of proactive and reactive aggression in childhood : Common and specific genetic-environmental factors
(Public Library of Science, 2017-12-06)
Background
Few studies are grounded in a developmental framework to study proactive and reactive aggression. Furthermore, although distinctive correlates, predictors and outcomes have been highlighted, proactive and reactive ...