Treating depression during pregnancy may benefit baby’s brain development – new research

A new study published in Nature Communications suggests that treating depression during pregnancy may positively impact the brain development of the baby. Depression affects 1 in 5 women during pregnancy and can lead to complications such as high blood pressure and preterm birth. Furthermore, prenatal depression can increase the risk of mental illness in the child.

The research, co-authored by the reporter, involved 234 pregnant women with depression who were randomly assigned to receive either MOMCare (an eight-session interpersonal psychotherapy program) or education about mental health and strategies for managing depression symptoms. Both groups continued receiving their usual medical care.

After a few weeks of birth, researchers measured the volume of different brain areas in the infants using magnetic resonance imaging (MRI). They found that the hippocampus, a brain area involved in learning, memory, and emotional regulation, was 5% smaller by volume in babies whose mothers received MOMCare compared to those in the control group. This difference persisted six months later when the babies were brought back to the lab to test their emotional responses to unfamiliar experiences.

While the findings may initially seem counterintuitive, research indicates that faster brain growth in infants doesn't always translate to negative outcomes. In some cases, stress can even accelerate early brain development. The study highlights the importance of addressing maternal health issues, such as depression, during pregnancy, as it benefits both the mother and the developing baby's health.