Nature and Nurture in Language Acquisition

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Language is considered one of the attributes that define human beings as a unique species. We are the only species able to employ complex language to communicate our feelings, intentions and also to teach others. Although language is such an exclusive and intricate skill, infants can learn it fairly quickly. Child vocabulary grows very fast once they say their first words growing from 5-20 words at 18-months to about 6000 words by the age of 5 (Bates, 2003). This remarkable ability to acquire language is the basis for a central debate: how much of our ability to acquire, produce and understand language is innate (genetically programmed) and how much is acquired by learning? This essay will focus on the debate between nature and nurture and how research in the area of language produced evidence for both sides of the argument. The claim for an innate ability for language acquisition assumes that we are genetically programmed to acquire language. Human languages demand very complex abilities such as syntactic (sentence formation) and semantic (sentences meaning) rules. We can, however, apply them naturally and automatically hundreds of times every day. If learning language is really about knowing these rules, then language acquisition would involve a massive task for infants. Nativist theorists such as Chomsky advocate that it would be impossible for children to learn such a complicated set of rules if they were not born equipped with specialised brain structures for language acquisition. Chomsky (1968) suggests that children are born with an innate specialised mechanism in their brains (Language Acquisition Device) that allows them to identify the structure-dependence of a language and to be able to use these structures efficie... ... middle of paper ... ..., Vol. 10, No.2/3, pp. 75-107 Baker, Mark. 2005. The Innate Endowment for Language: Overspecified or Underspecified. In P. Carruthers, S. Lawrence and S. Stich (eds.) The Innate Mind: Structure and Contents. Oxford University Press, Oxford, 156-174. Bates, E. (2003). On the nature and nurture of language. Frontiers of biology The brain of Homo sapiens, 241–265. Crain, S., Pietroski, P. (2001). Nature, nurture and universal grammar. Linguistics and Philosophy. Vol. 24, No. 2, Apr., 2001 Dehaene-Lambertz, G., Hertz-Pannier, L., Dubois, J. (2006). Nature and nurture in language acquisition: anatomical and functional brain-imaging studies in infants. Trends in Neuroscience, Vol. 29, No.7 Evans, N., & Levinson, S. C. (2009). The myth of language universals: Language diversity and its importance for cognitive science. Behavioral and Brain Sciences, 32(5), 429-492.

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