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Citation
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van den Heuvel MI, Monk C, Hendrix CL, Hect J, Lee S, Feng T, Thomason ME. J. Am. Acad. Child Adolesc. Psychiatry 2023; ePub(ePub): ePub. |
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Abstract
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OBJECTIVE: - Childhood maltreatment (CM) is a potent risk factor for developing psychopathology later in life. Accumulating research suggests that the influence is not limited to the exposed individual but may also be transmitted across generations. In this study, we examine the effect of CM in pregnant women on fetal amygdala-cortical functional, prior to postnatal influences.
METHOD: - Healthy, pregnant women (N=89) completed fetal resting-state functional magnetic resonance imaging (rsfMRI) scans between the late 2(nd) trimester and birth. Women were primarily from low socioeconomic status households with relatively high CM. Mothers completed questionnaires prospectively evaluating prenatal psychosocial health and retrospectively evaluating trauma from their own childhood. Voxelwise functional connectivity was calculated from bilateral amygdala masks.
RESULTS: - Connectivity of the amygdala network was relatively higher to left frontal areas (prefrontal cortex and premotor) and relatively lower to right premotor area and brainstem areas in fetuses of mothers exposed to higher CM. These associations persisted after controlling for maternal socioeconomic status, maternal prenatal distress, measures of fetal motion, and gestational age at the time of scan and at birth.
CONCLUSION: - Pregnant women's experiences of CM are associated with offspring brain development in utero. The strongest effects were found in the left hemisphere, potentially indicating lateralization of the effects of maternal CM on the fetal brain. This study suggests that the time frame of the Developmental Origins of Health and Disease research should be extended to exposures from mothers' childhood and indicates that the intergenerational transmission of trauma may occur prior to birth.
Language: en |