Parenting Is an Environmental Predictor of Callous-Unemotional Traits and Aggression: A Monozygotic Twin Differences Study.

ABSTRACT:

Objective

Callous-unemotional (CU) traits increase risk for children to develop severe childhood aggression and conduct disorder. CU traits are typically described as highly heritable, and debate continues about whether the parenting environment matters in their etiology. Strong genetically informed designs are needed to test for the presence of environmental links between parenting practices and CU traits. Our objective was to determine whether parental harshness and parental warmth were related to children's aggression or CU traits when accounting for genetically mediated effects.

Method

We examined 227 monozygotic twin pairs (454 children) drawn from population-based and at-risk samples of twin families, leading to oversampling of twins living in poverty. We computed mult

SUBMITTER: Waller R 

PROVIDER: S-EPMC6296820 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature