Although animal models and correlational studies support a model of fetal programming as a mechanism in the transmission of risk for psychopathology from parents to children, the experimental studies that are required to empirically test the model with the human prenatal dyad are scarce.
With a systematic review and meta-analysis of the literature, we critically examined the evidence regarding the neurobiological and behavioral changes in infants as a function of randomized clinical trials to prevent or reduce maternal depression during pregnancy, treating randomized clinical trials as experiments testing the fetal programming model.
Based on 25 articles that met inclusion criteria, we found support for interventions designed to change maternal prenatal mood being associated with changes in offspring functioning, but with a very small effect size. Effect sizes ranged broadly, and were higher for younger children.
The findings enhance understanding of putative mechanisms in the transmission of risk from women's prenatal depression to infants' vulnerabilities to, and early signs of, the development of psychopathology. We note limitations of the literature and suggest solutions to advance understanding of how preventing or treating depression in pregnant women might disrupt the transmission of risk to the infants.
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