Facial emotion recognition during pregnancy: Examining the effects of facial age and affect.

It is vital that new mothers quickly and accurately recognize their child's facial expressions. There is evidence that during pregnancy women develop enhanced processing of facial features associated with infancy and distress, as these cues signal vulnerability and are therefore biologically salient. In this study, 51 pregnant women at 17-36 weeks gestation watched neutral infant and adult faces gradually morph into either happy or sad expressions.