Document Detail

Genetic and caregiving-based contributions to infant attachment: unique associations with distress reactivity and attachment security.
MedLine Citation:
PMID:  22829464     Owner:  NLM     Status:  MEDLINE    
In the longitudinal study reported here, we examined genetic and caregiving-based contributions to individual differences in infant attachment classifications. For 154 mother-infant pairs, we rated mothers' responsiveness to their 6-month-old infants during naturalistic interactions and classified infants' attachment organization at 12 and 18 months using the Strange Situation procedure. These infants were later genotyped with respect to the serotonin-transporter-linked polymorphic region (5-HTTLPR). Maternal responsiveness uniquely predicted infants' attachment security. Infants' 5-HTTLPR variation uniquely predicted their subtype of attachment security at 12 months and their subtype of attachment insecurity at 12 and 18 months. The short allele for 5-HTTLPR was associated with attachment classifications characterized by higher emotional distress. These findings suggest that 5-HTTLPR variation contributes to infants' emotional reactivity and that the degree to which caregivers are responsive influences how effectively infants use their caregivers for emotion regulation. Theoretical implications for the study of genetic and caregiving influences are discussed.
K Lee Raby; Dante Cicchetti; Elizabeth A Carlson; J J Cutuli; Michelle M Englund; Byron Egeland
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2012-07-24
Journal Detail:
Title:  Psychological science     Volume:  23     ISSN:  1467-9280     ISO Abbreviation:  Psychol Sci     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-18     Completed Date:  2013-02-27     Revised Date:  2013-04-16    
Medline Journal Info:
Nlm Unique ID:  9007542     Medline TA:  Psychol Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1016-23     Citation Subset:  IM    
Institute of Child Development, University of Minnesota, Twin Cities 55455, USA.
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MeSH Terms
Child Development*
Gene-Environment Interaction
Longitudinal Studies
Maternal Behavior
Mother-Child Relations*
Object Attachment*
Regression Analysis
Serotonin Plasma Membrane Transport Proteins / genetics*
Grant Support
R01MH40864-09/MH/NIMH NIH HHS; T32 MH015755/MH/NIMH NIH HHS; T32MH015755-33/MH/NIMH NIH HHS
Reg. No./Substance:
0/SLC6A4 protein, human; 0/Serotonin Plasma Membrane Transport Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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