Document Detail

Birth timing and the mother-infant relationship predict variation in infant behavior and physiology.
MedLine Citation:
PMID:  22886319     Owner:  NLM     Status:  Publisher    
The current study explored whether birth timing, known to influence the mother-infant relationship, also affected infant physiology up to 9 months later and infant behavior at weaning. Infant blood samples were collected at 5.75 and 8.75 months of age to assess functioning of the hypothalamic-pituitary-adrenal axis as well as the antibody response to a Cholera vaccination. Path analysis indicated infants born late in the birth season had less Relaxed relationships with their mothers. A less-Relaxed relationship was associated with greater infant Positive Engagement and Distress, which were negatively correlated, suggesting infants may have different strategies of coping with this type of relationship. Low Relaxed scores were also associated with higher infant cortisol concentrations at 5.75 months, which was associated with a reduced immune response to a vaccination 3 months later. Together these results indicate that the influence of birth timing on the mother-infant relationship may have consequences for infant development. © 2012 Wiley Periodicals, Inc. Dev Psychobiol.
Jessica J Vandeleest; Sally P Mendoza; John P Capitanio
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-6
Journal Detail:
Title:  Developmental psychobiology     Volume:  -     ISSN:  1098-2302     ISO Abbreviation:  Dev Psychobiol     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
California National Primate Research Center, University of California-Davis One Shields Avenue Davis, CA 956167.
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