Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Experimental evidence for differential susceptibility: Dopamine D4 receptor polymorphism (DRD4 VNTR) moderates intervention effects on toddlers' externalizing behavior in a randomized controlled trial.|
Van IJzendoorn, M.
|Citation:||Developmental Psychology, 2008; 44(1):293-300|
|Publisher:||Amer Psychological Assoc|
|Marian J. Bakermans-Kranenburg, Marinus H. Van IJzendoorn, Femke T. A. Pijlman, Judi Mesman, and Femmie Juffer|
|Abstract:||In a randomized controlled trial we tested the role of genetic differences in explaining variability in intervention effects on child externalizing behavior. One hundred fifty-seven families with 1- to 3-year-old children screened for their relatively high levels of externalizing behavior participated in a study implementing Video-feedback Intervention to promote Positive Parenting and Sensitive Discipline (VIPP-SD), with six 1.5-hr intervention sessions focusing on maternal sensitivity and discipline. A moderating role of the dopamine D4 receptor (DRD4) variable-number tandem repeat (VNTR) exon III polymorphism was found: VIPP-SD proved to be effective in decreasing externalizing behavior in children with the DRD4 7-repeat allele, a polymorphism that is associated with motivational and reward mechanisms and Attention Deficit Hyperactivity Disorder (ADHD) in children. VIPP-SD effects were largest in children with the DRD4 7-repeat allele whose parents showed the largest increase in the use of positive discipline. The findings of this first experimental test of (measured) gene by (observed) environment interaction in human development indicate that children may be differentially susceptible to intervention effects depending on genetic differences.|
|Keywords:||intervention, dopamine, DRD4, externalizing behavior, toddlers, sensitive parenting|
|Description:||©2008 American Psychological Association|
|Appears in Collections:||Pharmacology publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.