Journal
DEVELOPMENTAL PSYCHOBIOLOGY
Volume 56, Issue 5, Pages 964-978Publisher
WILEY
DOI: 10.1002/dev.21175
Keywords
attention; early experience; electrophysiology; parental care; stress
Categories
Funding
- National Institutes of Health Research [R01 MH079328]
- National Institute of Mental Health and Administration for Children and Families/Children's Bureau of the Administration on Children, Youth and Families as part of the Federal Child Neglect Research Consortium
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This study examined parasympathetic physiology as a moderator of the effects of early adversity (i.e., child abuse and neglect) on children's inhibitory control. Children's respiratory sinus arrhythmia (RSA) was assessed during a resting baseline, two joint challenge tasks with mother, and an individual frustration task. RSA assessed during each of the joint parent-child challenge tasks moderated the effects of child maltreatment (CM) status on children's independently-assessed inhibitory control. No moderation effect was found for RSA assessed at baseline or in the child-alone challenge task. Among CM-exposed children, lower RSA levels during the joint task predicted the lowest inhibitory control, whereas higher joint task RSA was linked to higher inhibitory control scores that were indistinguishable from those of non-CM children. Results are discussed with regard to the importance of considering context specificity (i.e., individual and caregiver contexts) in how biomarkers inform our understanding of individual differences in vulnerability among at-risk children. (C) 2013 Wiley Periodicals, Inc.
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