A recent study says, speaking with infants who were aged 3 months-an can affect cognitive development and help the brain form a category. Research also says that babies who learn to associate an object with words more than pictures can do better division.

In a study published in Child Development, the researchers compared the effects between the words and sounds on infant cognition abilities between the ages of 3-4 months. All babies are shown images of fish, and then connected with a word or sound "beep". The baby is in the group "the words" are told, "See, it Toma (words that have been innovated to fish)" when they see pictures of the fish. If the child is forming a category that is more familiar with the fish in his brain, he will see the picture longer.

The results showed that babies who hear the words form a separate category for fish than those who only heard the "beep". "We estimate that human speech, especially those addressed directly to the baby, helping her to pay attention to an object and forming a categorization," said Sandra Waxman, professor of psychology at Northwestern University. The effect will be better as the baby began to be able to distinguish every word that came to him to distinguish word meanings and differences, and map it into a meaning.