Our ability to perceive and react to light may develop well before we are born, a new study shows.
As almost every soon-to-be parent has been told, babies learn a lot even before they are born. They hear us speak through the amniotic fluid; they sense their mother’s physical state through hormones passed across the placenta; and now, a new study by Vincent Reid and colleagues at Lancaster University shows that they start perceiving visual stimuli several weeks before they come into the world.