Genetic Influence on Parenting Sensitivity in High-Risk Births
Author Information
Author(s): Fortuna Keren, van IJzendoorn Marinus H., Mankuta David, Kaitz Marsha, Avinun Reut, Ebstein Richard P., Knafo Ariel
Primary Institution: Department of Psychology, the Hebrew University of Jerusalem
Hypothesis
The relation between child risks at birth and later maternal sensitivity depends on the presence of a genetic variant in the mothers.
Conclusion
Mothers carrying the 7-repeat allele of the DRD4 gene showed less sensitive parenting in response to higher levels of risk at birth, while those with lower risk exhibited higher sensitivity.
Supporting Evidence
- Higher risk at birth was linked to less sensitive parenting among mothers with the 7-repeat allele.
- Mothers without the 7-repeat allele showed no difference in sensitivity regardless of risk level.
- Carriers of the 7-repeat allele were more sensitive to low-risk children.
Takeaway
Some moms are more sensitive to their babies based on their genes and the risks the babies faced at birth; if a baby is at high risk, a mom with a certain gene might struggle more to be sensitive.
Methodology
Mothers of twin pairs were observed during play sessions with their children at age 3.5 years, and their DNA was analyzed for the DRD4 gene.
Potential Biases
Potential bias due to reliance on observational data from a single interaction session.
Limitations
The sample size was limited, and the study focused only on mothers of twins, which may affect generalizability.
Participant Demographics
Mothers of twins, average age 33.68 years, with varying educational backgrounds.
Statistical Information
P-Value
p<0.04
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website