Reading with Baby (IMAGE) Duke University Caption This baby is wearing an audio recording vest. Girls have a lexical leg up over boys around the time of their first birthday, but their early-life language advantage isn’t because they hear more chatter from mom or dad. Credit Elika Bergelson, Duke University Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.