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The importance of shared environment in mother-infant attachment security: a behavioral genetic study.
Child Dev. 2003 Nov-Dec; 74(6):1769-82.CD

Abstract

In a sample of 157 monozygotic and dizygotic twins, genetic and environmental influences on infant attachment and temperament were quantified. Only unique environmental or error components could explain the variance in disorganized versus organized attachment as assessed in the Ainsworth Strange Situation Procedure. For secure versus nonsecure attachment, 52% of the variance in attachment security was explained by shared environment, and 48% of the variance was explained by unique environmental factors and measurement error. The role of genetic factors in attachment disorganization and attachment security was negligible. Genetic factors explained 77% of the variance in temperamental reactivity, and unique environmental factors and measurement error explained 23%. Differences in temperamental reactivity were not associated with attachment concordance.

Authors+Show Affiliations

Bokhorst CL
Center for Child and Family Studies, Leiden University, The Netherlands.
Bakermans-Kranenburg MJ
No affiliation info available
Fearon RM
No affiliation info available
van IJzendoorn MH
No affiliation info available
Fonagy P
No affiliation info available
Schuengel C
No affiliation info available

MeSH

FemaleGenetics, BehavioralHumansIndividualityInfantLondonMaleMother-Child RelationsNetherlandsObject AttachmentParentingPersonality AssessmentPsychometricsRisk FactorsSocial EnvironmentTemperamentTwins

Pub Type(s)

Journal Article
Twin Study

Language

eng

PubMed ID

14669895

Citation

Bokhorst, Caroline L., et al. "The Importance of Shared Environment in Mother-infant Attachment Security: a Behavioral Genetic Study." Child Development, vol. 74, no. 6, 2003, pp. 1769-82.
Bokhorst CL, Bakermans-Kranenburg MJ, Fearon RM, et al. The importance of shared environment in mother-infant attachment security: a behavioral genetic study. Child Dev. 2003;74(6):1769-82.
Bokhorst, C. L., Bakermans-Kranenburg, M. J., Fearon, R. M., van IJzendoorn, M. H., Fonagy, P., & Schuengel, C. (2003). The importance of shared environment in mother-infant attachment security: a behavioral genetic study. Child Development, 74(6), 1769-82.
Bokhorst CL, et al. The Importance of Shared Environment in Mother-infant Attachment Security: a Behavioral Genetic Study. Child Dev. 2003 Nov-Dec;74(6):1769-82. PubMed PMID: 14669895.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The importance of shared environment in mother-infant attachment security: a behavioral genetic study. AU - Bokhorst,Caroline L, AU - Bakermans-Kranenburg,Marian J, AU - Fearon,R M Pasco, AU - van IJzendoorn,Marinus H, AU - Fonagy,Peter, AU - Schuengel,Carlo, PY - 2003/12/13/pubmed PY - 2004/3/27/medline PY - 2003/12/13/entrez SP - 1769 EP - 82 JF - Child development JO - Child Dev VL - 74 IS - 6 N2 - In a sample of 157 monozygotic and dizygotic twins, genetic and environmental influences on infant attachment and temperament were quantified. Only unique environmental or error components could explain the variance in disorganized versus organized attachment as assessed in the Ainsworth Strange Situation Procedure. For secure versus nonsecure attachment, 52% of the variance in attachment security was explained by shared environment, and 48% of the variance was explained by unique environmental factors and measurement error. The role of genetic factors in attachment disorganization and attachment security was negligible. Genetic factors explained 77% of the variance in temperamental reactivity, and unique environmental factors and measurement error explained 23%. Differences in temperamental reactivity were not associated with attachment concordance. SN - 0009-3920 UR - https://www.unboundmedicine.com/medline/citation/14669895/The_importance_of_shared_environment_in_mother_infant_attachment_security:_a_behavioral_genetic_study_ DB - PRIME DP - Unbound Medicine ER -