Mothers’ caregiving may erase negative effects of stress during pregnancy on infants

A study published in the Journal of Child Psychology and Psychiatry suggests that mothers’ sensitive caregiving after giving birth may erase some of the negative effects of stress during pregnancy on newborns.

In the study of 94 mother-infant pairs, higher levels of the primary stress hormone cortisol in women during pregnancy were associated with greater cortisol-based stress responses in infants, but only in those whose mothers were less emotionally available after birth. Other markers of stress during pregnancy did not show this association, however.

These results are strikingly similar to those reported in animal work and emphasize the joint contribution of prenatal and postnatal environments in programming of later outcomes. From a clinical perspective, findings suggest that enhancing maternal sensitive caregiving, especially in situations of high stress in pregnancy, should be a key target of postnatal interventions in order to attenuate the long-term consequences of prenatal adversity on child development.”

Sarah Nazzari, lead author, Scientific Institute IRCCS Eugenio Medea, Italy

Source:

Journal reference:

Nazzari, S., et al. (2021) Maternal caregiving moderates the impact of antenatal maternal cortisol on infant stress regulation. Journal of Child Psychology and Psychiatry. doi.org/10.1111/jcpp.13532.

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