Karl Kim,the Korean,who immigrated to the United States ten years ago. Now,he is a graduate student in the lab of Joy Hirsch. They took a experiment and found some interesting result. The research is about studying the brains of two bilingual people. One learned second language as they were children. The others learned latter. Both of two groups have the same observation in Wernicke's area. It cannot show the difference between them. But their use of Broca's area was different for their second language. So,Karl and Joy concluded some reasons of the outcome. First, the brain may combine sounds and structures from languages into the same area when we in children. After we grow up, new sounds and structures must be taken over by the other part of brain. Last, the learning process we acquire languages differently as children than we do as adults. It means family teach an infant to learning speak with visual actions. It is active than sitting in a classroom.
Nice summary.
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