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. We measured the speed and accuracy with which participants were able to recognize facial affect (happy vs. sad) across facial ages (infant vs. adult). Participants were faster and more accurate at recognizing happy versus sad faces and adult versus infant faces. We discuss how prior exposure to a certain face type may explain faster recognition. We also consider these results in the context of evidence indicating positive affect is recognized more quickly, but associated with slower attention and detection.