A study has shown a potential link between pregnancy-related anxiety and how a baby’s brains respond to sad speech. Researchers at Aalto University and the University of Turku in Finland showed that mothers with high anxiety scores at 24 weeks of pregnancy gave birth to babies who had reduced brain responses to sad-sounding speech. The effect was significantly smaller at 34 weeks of pregnancy, suggesting the effects of pregnancy-related anxiety may be transferred more easily to the unborn baby in mid- rather than late pregnancy. Studying a larger group would make it possible to understand the behavioral implications of the observed changes.
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