In this study, very young children appear to be making little proto-word noises in the right places where closed-class grammar words should be. Interesting.
Grammar May Be Hidden in Toddler Babble
http://www.livescience.com/37502-grammar-may-be-hidden-in-toddler-babble.html?cmpid=514645
Grammar May Be Hidden in Toddler Babble
http://www.livescience.com/37502-grammar-may-be-hidden-in-toddler-babble.html?cmpid=514645
