Abstract
Maternal sensitive responsiveness and extreme insensitivity only partly explain the variance in attachment security. Differences in attachment security may well be rooted in the interplay of genetic variations and environmental factors. The association between parenting (observed sensitive responsiveness and extreme insensitivity) and attachment security (assessed with the Strange Situation Procedure) was hypothesized to be moderated by genes involved in the regulation of the stress response: the glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) genes. A significant G. × E interaction was found: infants carrying the minor MR allele (G) were significantly more securely attached if their mothers showed more sensitive responsiveness and significantly less securely attached if their mothers showed more extremely insensitive behaviors. These associations were not significant for carriers of the AA genotype of MR. Findings are discussed from a differential susceptibility perspective.
Original language | English |
---|---|
Pages (from-to) | 37-40 |
Number of pages | 4 |
Journal | Biological Psychology |
Volume | 88 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Sept 2011 |
Externally published | Yes |
Funding
Funding for this study was provided by grants from the Netherlands Organization for Scientific Research (NWO, grant no. 400-04-182, grant no. 452-04-306 (VIDI) and NWO SPINOZA prize). NWO had no further role in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the paper for publication. The Generation R Study is conducted by the Erasmus Medical Center in close collaboration with the School of Law and Faculty of Social Sciences of the Erasmus University Rotterdam, the Municipal Health Service Rotterdam area, Rotterdam, the Rotterdam Homecare Foundation, Rotterdam and the Stichting Trombosedienst & Artsenlaboratorium Rijnmond (STAR), Rotterdam. We gratefully acknowledge the contribution of general practitioners, hospitals, midwives and pharmacies in Rotterdam. The first phase of the Generation R Study is made possible by financial support from the Erasmus Medical Center, Rotterdam, the Erasmus University Rotterdam and the Netherlands Organization for Health Research and Development (ZonMw). The present study was supported by additional grants from the Netherlands Organization for Scientific Research (grant no. 400-04-182 , grant no. 452-04-306 (VIDI) and NWO SPINOZA prize). Appendix A
Keywords
- Attachment
- Differential susceptibility
- GR
- MR
- Parenting