4.3 Article

Maternal mental health mediates the effect of prenatal stress on infant temperament: The Harvey Mom Study

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DEVELOPMENT AND PSYCHOPATHOLOGY
卷 -, 期 -, 页码 -

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CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0954579423000160

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prenatal stress; maternal mental health; infant development; temperament

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Prenatal maternal stress and mental health problems can increase the risk of developmental psychopathology in offspring. In a study on women who were pregnant during Hurricane Harvey, researchers found that objective hardships related to the storm indirectly predicted infant temperament outcomes through its association with maternal mental health symptoms. These findings emphasize the importance of assessing and providing mental health services for vulnerable women and young children.
Prenatal maternal stress and mental health problems are known to increase risk for developmental psychopathology in offspring, yet pathways leading to risk or resiliency are poorly understood. In a quasi-experimental design, we prospectively examined associations between disaster-related prenatal stress, maternal mental health symptoms, and infant temperament outcomes. Mothers who were pregnant during Hurricane Harvey (N = 527) reported on objective hardships (e.g., loss of belongings or income, evacuation, home flooding) related to the storm and subsequent mental health symptoms (anxiety/depression, posttraumatic stress) across time. At a postpartum assessment, mothers reported on their infant's temperament (negative affect, positive affect, orienting/regulatory capacity). Greater objective hardship indirectly predicted higher levels of infant orienting/regulatory capacity through its association with increased maternal posttraumatic stress symptoms. Greater objective hardship also indirectly predicted higher levels of infant negative affect through its association with increased maternal anxiety/depression symptoms across time. Our findings suggest a psychological mechanism linking prenatal stress with specific temperamental characteristics via maternal mental health symptoms. Findings point to the importance of high-quality assessment and mental health services for vulnerable women and young children.

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