I recently read an article in Scientific American Mind, May/June 2012 about language development in young children.  Did you know that to tune their speech, young toddlers rely on different feedback than adults?  As adults, we subconsciously listen to our own voice to tune pitch, volume, and pronunciation. Young children just learning to talk do not.  Research has found that they do not begin to listen to their own voice until they are much older, instead relying on the adult to give them feedback.  The real take home message from this research is that “social interaction is important for the development of speech.” (Ewen MacDonald 2011)  You can read the article below.