I couldn't find Nathan Bierma's article, entitled "Study finds clues to how we learn language," online. He discusses a new study by Janet McDonald, a psychologist at Louisiana State University, in the "Journal of Child Language." It found language clues in "working memory" and sound perception. They defined working memory as the ability to store words in your short-term memory as you hear them.
The researcher found that children with better working memories could recognize certain kinds of grammatical errors better, including errors in word order and a missing "-ing" in the present tense in sentences such as "The little girl is play with her dolls," where "play" should be "playing."
quote:
Meanwhile, children with better sound perception did better at flagging errors such as a missing "do" in a question like "What you think?" When just a single syllable determines whether a sentence is grammatical or not, sound perception is the key to mastering the grammar, she concludes.
She then gave a similar series of tests to adults and found similar results.
The investigator concludes that there are factors other than grammatical knowledge that are important to grammatical judgment, such as a working memory or sound perception. She says that when educating children you should not only look at the language they are learning, but also at the brains of the learners. For example, she suggestions that even the way teachers give tests, such as repeating questions or setting time limits, can affect performance just as knowledge can.