chomsky and language acquisition

Noam Chomsky

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Linguistics

Chomskyan linguistics, beginning with his Syntactic Structures, a distillation of his Logical Structure of Linguistic Theory (1955, 75), challenges structural linguistics and introduces transformational grammar.^[63] This approach takes utterances (sequences of words) to have a syntax characterized by a formal grammar; in particular, a context-free grammar extended with transformational rules.

Perhaps his most influential and time-tested contribution to the field is the claim that modeling knowledge of language using a formal grammar accounts for the "productivity" or "creativity" of language. In other words, a formal grammar of a language can explain the ability of a hearer-speaker to produce and interpret an infinite number of utterances, including novel ones, with a limited set of grammatical rules and a finite set of terms. He has always acknowledged his debt to Pāṇini for his modern notion of an explicit generative grammar, although it is also related to rationalist ideas of a priori knowledge.

It is a popular misconception that Chomsky proved that language is entirely innate, and that he discovered a "universal grammar" (UG). In fact, Chomsky simply observed that while a human baby and a kitten are both capable of inductive reasoning, if they are exposed to exactly the same linguistic data, the human child will always acquire the ability to understand and produce language, while the kitten will never acquire either ability. Chomsky labeled whatever the relevant capacity the human has that the cat lacks the "language acquisition device" (LAD) and suggested that one of the tasks for linguistics should be to figure out what the LAD is and what constraints it puts on the range of possible human languages. The universal features that would result from these constraints are often termed "universal grammar" or UG.^[64] Though Chomsky generated the universal grammar theory with the belief that language is uniquely human, a series of studies from various laboratories have shown the existence of acquired language in several great ape species, includingcommon chimpanzees,^{[65][66][67][68][69][70][71]} bonobos,^[71][72] gorillas,^[73] and orangutans.^[74] Thus, great apes at least partially possess whatever mental functions might underlie the LAD, and are therefore important species of study for exploring the neural basis of language.

Chomsky's ideas have had a strong influence on researchers of language acquisition in children, though many researchers in this area such as Elizabeth Bates^[75] and Michael Tomasello^[76] argue very strongly against Chomsky's theories, and instead advocate emergentist or connectionist theories, explaining language with a number of general processing mechanisms in the brain that interact with the extensive and complex social environment in which language is used and learned.

Generative grammar

Main article: Generative grammar

The Chomskyan approach towards syntax, often termed generative grammar, studies grammar as a body of knowledge possessed by language users. Since the 1960s, Chomsky has maintained that much of this knowledge is innate, implying that children need only learn certain parochial features of their native languages.^[77] The innate body of linguistic knowledge is often termed universal grammar. From Chomsky's perspective, the strongest evidence for the existence of Universal Grammar is simply the fact that children successfully acquire their native languages in so little time. Furthermore, he argues that there is an enormous gap between the linguistic stimuli to which children are exposed and the rich linguistic knowledge they attain (the "poverty of the stimulus" argument). The knowledge of Universal Grammar would serve to bridge that gap.

Noam Chomsky - Wikipedia, the free encyclopedia

Language acquisition

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Language acquisition is the process by which humans acquire the capacity to perceive and comprehend language, as well as to produce and use words and sentences to communicate. Language acquisition is one of the quintessential human traits, because nonhumans do not communicate by using language.^[1] Language acquisition usually refers to first-language acquisition, which studies infants' acquisition of their native language. This is distinguished from second-language acquisition, which deals with the acquisition (in both children and adults) of additional languages.

The capacity to successfully use language requires one to acquire a range of tools including phonology, morphology,syntax, semantics, and an extensive vocabulary. Language might be vocalized as speech or manual as in sign. The human language capacity is represented in the brain. Even though the human language capacity is finite, one can say and understand an infinite number of sentences, which is based on a syntactic principle called Recursion. Evidence suggests that every individual has three recursive mechanisms that allow sentences to go indeterminately. These three mechanisms are: relativization, complementation and coordination.^[2]

A major debate in understanding language acquisition is how these capacities are picked up by infants from the linguistic input. Input in the linguistic context is defined as "All words, contexts, and other forms of language to which a learner is exposed, relative to acquired proficiency in first or second languages". Nativists find it difficult to believe, considering the hugely complex nature of human languages, and the relatively limited cognitive abilities of an infant, that infants are able to acquire most aspects of language without being explicitly taught. Children, within a few years of birth, understand the grammatical rules of their native language without being explicitly taught, as one learns grammar in school.^[4] A range of theories of language acquisition have been proposed in order to explain this apparent problem. These theories, championed by the likes of Noam Chomsky and others, include innatism and Psychological nativism, in which a child is born prepared in some manner with these capacities, as opposed to other theories in which language is simply learned as other cognitive skills, including such mundane motor skills as learning to ride a bike. The conflict between the theories assuming humans are born with syntactic knowledge and those that claim all such knowledge is the product of learning from one's environment is often referred to as the "Nature vs. Nurture" debate. Some think that there are some qualities of language acquisition that the human brain is automatically wired for (a "nature" component) and some that are shaped by the particular language environment in which a person is raised (a "nurture" component). Others, especially evolutionary biologists, strongly object to assuming syntactic knowledge is genetically encoded and provided by automatic wiring of the brain.

Language acquisition - Wikipedia, the free encyclopedia

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