Send to

Choose Destination
Dev Psychobiol. 2006 Jul;48(5):406-9.

Gene-environment interaction of the dopamine D4 receptor (DRD4) and observed maternal insensitivity predicting externalizing behavior in preschoolers.

Author information

Center for Child and Family Studies, Leiden University, The Netherlands.


Previous studies have related aggression and other externalizing problems in children to either dopamine D4 receptor polymorphisms or harsh and insensitive parenting. In this study it was determined whether the combination of the DRD4 7-repeat polymorphism and maternal insensitivity predicted significantly more externalizing behavior in preschoolers. The results pointed to a gene-environment interaction effect: maternal insensitivity was associated with externalizing (oppositional, aggressive) behaviors, but only in the presence of the DRD4 7-repeat polymorphism. The increase in externalizing behaviors in children with the 7-repeat allele exposed to insensitive care compared to children without these combined risks was sixfold. The data indicate that children are differentially susceptible to insensitive parenting dependent on the presence of the 7-repeat DRD4 allele.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center