Avram Noam Chomsky is an American linguist, philosopher, cognitive scientist, historian, and activist. He is an Institute Professor and Professor (Emeritus) in the Department of Linguistics & Philosophy at MIT, where he has worked for over 50 years. Chomsky has been described as the "father of modern linguistics" and a major figure of analytic philosophy. His work has influenced fields such as computer science, mathematics, and psychology.
Chomsky was born on December 7, 1928, to Jewish parents in the affluent East Oak Laneneighborhood of Philadelphia, Pennsylvania, the elder son of noted professor of Hebrew at Gratz College and IWW (Industrial Workers of the World) member William Chomsky (1896–1977), a native of Ukraine. His mother, Elsie Chomsky (née Simonofsky)—a native of what is present-day Belarus—grew up in the United States and, unlike her husband, spoke "ordinary New York English". Chomsky's parents' first language was Yiddish, but Chomsky said it was "taboo" in his family to speak it. Although Chomsky's mother was part of the radical activism in the 1930s, he was influenced largely by his uncle who, having never passed 4th grade, owned a newsstand that acted as an "intellectual center [where] professors of this and that argu[ed] all night". Chomsky was influenced also by being a part of a Hebrew-based, Zionist organization, as well as by hanging around anarchist bookstores.
In 1949, he married linguist Carol Schatz. They remained married for 59 years until her death from cancer in December 2008.
POLITICAL VIEWS
Chomsky is one of the best-known figures of the American left although he doesn't agree with the usage of the term. He has described himself as a "fellow traveller" to the anarchist tradition, and refers to himself as a libertarian socialist, a political philosophy he summarizes as challenging all forms of authority and attempting to eliminate them if they are unjustified for which the burden of proof is solely upon those who attempt to exert power. He identifies with the labor-oriented anarcho-syndicalist current of anarchism in particular cases, and is a member of the Industrial Workers of the World. He also exhibits some favor for the libertarian socialist vision of participatory economics, himself being a member of the Interim Committee for the International Organization for a Participatory Society
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He believes that libertarian socialist values exemplify the rational and morally consistent extension of original unreconstructed classical liberal and radical humanist ideas in an industrial context.
Chomsky has further defined himself as having held Zionist beliefs, although he notes that his definition of Zionism would be considered by most as anti-Zionism these days, the result of what he perceives to have been a shift (since the 1940s) in the meaning of Zionism (Chomsky Reader).
Chomsky is considered "one of the most influential left-wing critics of American foreign policy" by the Dictionary of Modern American Philosophers.
Contributions of Chomsky
Syntactic Structures was a distillation of his book Logical Structure of Linguistic Theory in which he introduces transformational grammars. The theory takes utterances (sequences of words) to have a syntax which can be (largely) characterized by a formal grammar; in particular, a Context-free grammar extended with transformational rules. Children are hypothesized to have an innate knowledge of the basic grammatical structure common to all human languages (i.e. they assume that any language which they encounter is of a certain restricted kind). This innate knowledge is often referred to as universal grammar. It is argued that modeling knowledge of language using a formal grammar accounts for the "productivity" of language: with a limited set of grammar rules and a finite set of terms, humans are able to produce an infinite number of sentences, including sentences no one has previously said.
The Principles and Parameters approach (P&P) — developed in his Pisa 1979 Lectures, later published as Lectures on Government and Binding (LGB) — make strong claims regarding universal grammar: that the grammatical principles underlying languages are innate and fixed, and the differences among the world's languages can be characterized in terms of parameter settings in the brain (such as the pro-drop parameter, which indicates whether an explicit subject is always required, as in English, or can be optionally dropped, as in Spanish), which are often likened to switches. (Hence the term principles and parameters, often given to this approach.) In this view, a child learning a language need only acquire the necessary lexical items (words, grammatical morphemes, and idioms), and determine the appropriate parameter settings, which can be done based on a few key examples.
Proponents of this view argue that the pace at which children learn languages is inexplicably rapid, unless children have an innate ability to learn languages. The similar steps followed by children all across the world when learning languages, and the fact that children make certain characteristic errors as they learn their first language, whereas other seemingly logical kinds of errors never occur (and, according to Chomsky, should be attested if a purely general, rather than language-specific, learning mechanism were being employed), are also pointed to as motivation for innateness.
More recently, in his Minimalist Program (1995), while retaining the core concept of "principles and parameters", Chomsky attempts a major overhaul of the linguistic machinery involved in the LGB model, stripping from it all but the barest necessary elements, while advocating a general approach to the architecture of the human language faculty that emphasizes principles of economy and optimal design, reverting to a derivational approach to generation, in contrast with the largely representational approach of classic P&P.
Chomsky's ideas have had a strong influence on researchers investigating the acquisition of language in children, though some researchers who work in this area today do not support Chomsky's theories, often advocating emergentist or connectionist theories reducing language to an instance of general processing mechanisms in the brain.
Contributions to psycologhy
Chomsky's work in linguistics has had major implications for modern psychology. For Chomsky linguistics is a branch of cognitive psychology; genuine insights in linguistics imply concomitant understandings of aspects of mental processing and human nature. His theory of a universal grammar was seen by many as a direct challenge to the established behaviorist theories of the time and had major consequences for understanding how language is learned by children and what, exactly, the ability to use language is. Many of the more basic principles of this theory (though not necessarily the stronger claims made by the principles and parameters approach described above) are now generally accepted in some circles.
In 1959, Chomsky published an influential critique of B. F. Skinner's Verbal Behavior, a book in which Skinner offered a speculative explanation of language in behavioral terms. "Verbal behavior" he defined as learned behavior which has its characteristic consequences being delivered through the learned behavior of others; this makes for a view of communicative behaviors much larger than that usually addressed by linguists. Skinner's approach focused on the circumstances in which language was used; for example, asking for water was functionally a different response than labeling something as water, responding to someone asking for water, etc. These functionally different kinds of responses, which required in turn separate explanations, sharply contrasted both with traditional notions of language and Chomsky's psycholinguistic approach. Chomsky thought that a functionalist explanation restricting itself to questions of communicative performance ignored important questions. (Chomsky-Language and Mind, 1968). He focused on questions concerning the operation and development of innate structures for syntax capable of creatively organizing, cohering, adapting and combining words and phrases into intelligible utterances.
In the review Chomsky emphasized that the scientific application of behavioral principles from animal research is severely lacking in explanatory adequacy and is furthermore particularly superficial as an account of human verbal behavior because a theory restricting itself to external conditions, to "what is learned", cannot adequately account for generative grammar. Chomsky raised the examples of rapid language acquisition of children, including their quickly developing ability to form grammatical sentences, and the universally creative language use of competent native speakers to highlight the ways in which Skinner's view exemplified under-determination of theory by evidence. He argued that to understand human verbal behavior such as the creative aspects of language use and language development, one must first postulate a genetic linguistic endowment. The assumption that important aspects of language are the product of universal innate ability runs counter to Skinner's radical behaviorism
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It has been claimed that Chomsky's critique of Skinner's methodology and basic assumptions paved the way for the "cognitive revolution", the shift in American psychology between the 1950s through the 1970s from being primarily behavioral to being primarily cognitive. In his 1966 Cartesian Linguistics and subsequent works, Chomsky laid out an explanation of human language faculties that has become the model for investigation in some areas of psychology. Much of the present conception of how the mind works draws directly from ideas that found their first persuasive author of modern times in Chomsky.
There are three key ideas. First is that the mind is "cognitive", or that the mind actually contains mental states, beliefs, doubts, and so on. Second, he argued that most of the important properties of language and mind are innate. The acquisition and development of a language is a result of the unfolding of innate propensities triggered by the experiential input of the external environment. Subsequent psychologists have extended this general "nativist" thesis beyond language. Lastly, Chomsky made the concept of "modularity" a critical feature of the mind's cognitive architecture. The mind is composed of an array of interacting, specialized subsystems with limited flows of inter-communication. This model contrasts sharply with the old idea that any piece of information in the mind could be accessed by any other cognitive process (optical illusions, for example, cannot be "turned off" even when they are known to be illusions).
Chomsky hierarchy
Chomsky is famous for investigating various kinds of formal languages and whether or not they might be capable of capturing key properties of human language. His Chomsky hierarchy partitions formal grammars into classes, or groups, with increasing expressive power, i.e., each successive class can generate a broader set of formal languages than the one before. Interestingly, Chomsky argues that modeling some aspects of human language requires a more complex formal grammar (as measured by the Chomsky hierarchy) than modeling others. For example, while a regular language is powerful enough to model English morphology, it is not powerful enough to model English syntax. In addition to being relevant in linguistics, the Chomsky hierarchy has also become important in computer science (especially in compiler construction and automata theory).
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