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Maternal stress and affect influence fetal neurobehavioral development.
Janet A DiPietro1, Sterling C Hilton, Melissa Hawkins
1Department of Population and Family Health Sciences, Johns Hopkins University, Baltimore, Maryland 21205, USA. jdipietr@jhsph.edu
Developmental Psychology
|September 11, 2002
Summary
Maternal stress and positive emotions significantly impact fetal development. High maternal stress correlated with increased fetal activity, while positive pregnancy experiences led to reduced fetal activity, demonstrating a clear link between maternal psychology and fetal neurobehavior.
Area of Science:
- Perinatal Psychology
- Developmental Neuroscience
- Maternal-Fetal Medicine
Background:
- Understanding the maternal-fetal relationship is crucial for healthy pregnancy outcomes.
- Maternal psychological state is increasingly recognized as a significant factor influencing fetal development.
Purpose of the Study:
- To investigate the association between maternal psychological functioning and fetal neurobehavioral outcomes.
- To model the relationships between maternal stress, emotional valence, and fetal activity and heart rate.
Main Methods:
- Longitudinal study of 52 maternal-fetal pairs across three gestational periods (24, 30, and 36 weeks).
- Statistical modeling was used to analyze maternal psychological measures (affective intensity, stress appraisal, pregnancy hassles, uplifting experiences) against fetal heart rate, variability, and motor activity.
Main Results:
- Fetuses exhibited increased motor activity when mothers reported higher affective intensity, stress, and pregnancy hassles.
- Fetuses showed decreased motor activity with maternal perception of uplifting pregnancy experiences and positive emotional valence.
- Fetal heart rate associations were primarily observed at 36 weeks gestation.
Conclusions:
- Maternal psychological functioning exerts proximal effects on fetal neurobehavior.
- Gestational age influences the manifestation of maternal psychological impacts on fetal heart rate.
- These findings highlight the intricate connection between maternal mental state and fetal development.