How new languages emerge

摘要: New languages are constantly emerging, as existing diverge into different forms. To explain this fascinating process, we need to understand how change and they emerge in children. In pioneering study, David Lightfoot explains come being, arguing that children the driving force. He explores new systems arise, acquired by children, adults play different, complementary roles language change. makes an important distinction between 'external language' (language it exists world), 'internal represented individual's brain). By examining interplay two, he shows 'cue-based' learners, who scan their external linguistic environment for structures, making sense of world outside order build internal language. Engaging original, book offers interesting account acquisition, variation