Prenatal Exposure to Maternal Depression and Infant Vagal Tone at 3-Months: The Moderating Role of Maternal Parenting Quality Pubblico
Morgan, Julia Elizabeth (2010)
Abstract
Abstract
Prenatal Exposure to Maternal Depression and Infant Vagal Tone at 3
-Months:
The Moderating Role of Maternal Parenting Quality
By Julia E. Morgan
This study examined maternal parenting quality and infant cardiac
vagal tone at 3-months
among 57 mother-infant dyads to test the hypothesis that the
quality of the mothers'
parenting behaviors with their infants would moderate the
association between prenatal
depression exposure and infant vulnerability to the later
development of depression. All
women had a history of major depression and/or anxiety disorder and
40 of them
experienced at least a clinically significant level of depression
symptoms, if not a
diagnosed episode of major depression, during pregnancy. Maternal
parenting quality
was measured with rating scales that reflected parenting
characteristics known to be early
life stressors to infants and that also assessed positive affect.
Preliminary analyses
identified three distinct maternal parenting behavior constructs
within the scales:
Sensitivity, Intrusiveness, and Withdrawal.
Infant vulnerability to the later development
of depression was reflected in infant cardiac vagal tone, a
psychophysiological measure
known to be associated with prenatal exposure to depression and
with the development of
depression and psychopathology. Electrocardiogram (EKG) recordings
were collected
during 5-minute freeplay dyads, which were also rated for
maternal parenting quality.
Hierarchical regression analysis showed that while exposure to
prenatal depression
significantly predicted infant vagal tone at 3-months (although not
in the expected
direction), maternal parenting quality and the interaction between
prenatal depression
exposure and maternal parenting quality did not account
significantly for additional
variance in vagal tone. Results are discussed in terms of
implications for future research.
Table of Contents
Table of Contents
Introduction………………………………………………………………………………..1
Method………………………………………………………………………………….....13
Results……………………………………………………………………………………...20
Discussion………………………………………………………………………………...26
References………………………………………………………………………………..32
Appendix……………………………………………………………………………..……39
Tables…………………………………………………………………………………...….50
1. Descriptive Statistics for Maternal Interactive Quality Rating
Scales
2. Correlations Among Rating Scales in the Hypothesized Withdrawal
Construct
3. Descriptive Statistics for Sensitivity, Intrusiveness, and
Withdrawal Summary
Scales; Prenatal Depression Scores (BDI AUC); and Vagal Tone
4. Correlations Among Maternal Parenting Quality Summary Scales,
Prenatal
Depression Scores (BDI AUC), and Vagal Tone
5. Summary of Hierarchical Regression Analysis for Variables
Predicting Vagal
Tone
About this Honors Thesis
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