This meta-analysis of whole-brain structural neuroimaging studies of youths with conduct problems identifies gray matter reductions within the insula, amygdala, and frontal and temporal regions.
This population epidemiology study of more than 700 000 Swedish men reports that low resting heart rate in late adolescence was associated with an increased risk for violent criminality, nonviolent criminality, exposure to assault, and unintentional injuries in adulthood.
Lozier and colleagues assessed the unique neurobiological covariates of callous-unemotional traits and externalizing behaviors in youths with conduct problems and determined whether neural dysfunction linked to callous-unemotional traits mediates the link between callousness and proactive aggression.
Hicks et al examine the familial transmission of externalizing disorders among both adoptive (genetically unrelated) and biological relatives to better distinguish genetic and environmental mechanisms of transmission.
Gaysina et al examine the relationship between maternal smoking during pregnancy and offspring
conduct problems among children reared by genetically related and genetically unrelated mothers.
Three studies using distinct but complementary research designs were used. Possible covariates were
controlled for in the analyses. See the Editorial by Slotkin.