How babies learn their first words ?

Parents are probably already know this - babies are learning words at 10 months old. However parents don't know that babies don't care much what they say - infants tend to grasp the names of objects that interest them rather than whatever the speaker thinks is important, a new study, led by Kathy Hirsh-Pasek, a professor of psychology at Temple University, finds.

The infants were able to learn two new words in 5 minutes with just 5 presentations for each word and object. Importantly, the babies paired a new word to the object they liked best, regardless of what object the speaker referred to.