Language Acquisition Device; Noam Chomsky
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Language Acquisition Device
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What is Language Acquisition Device?
is a hypothetical module of the brain posited to account for children’s innate pre- disposition for language acquisition.
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The LAD Theory
posits that a set list of acceptable sentence structures -that is, possible combinations of subjects, verbs, objects, and modifiers — are known to children at birth.
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(a)
Generative
Gramma
r
Structural
DescriptionPrimary
Linguistic data
utterance
Chomsky (1964) put the mentalist account of language acquisition in dramatic form by
outlining two “devices”.
A
B(b)
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GRAMMAR
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What is Universal Grammar?
Universal Grammar (UG) is a theory in linguistic.
• Ability to learn grammar is
hard-wired into the brain.
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Roger Bacon
The concept of UG has been traced to the
observation of Roger Bacon, a 13th century Franciscan Friar
and Philosopher, that all languages are built upon
common grammar.
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Roger Bacon
The Expression was popularized in the 1950s
and 1960s by Noam Chomskyand other linguistic.
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• Acquiring language cannot be reduced to simply developing an
inventory of response to stimuli, because every
sentence that anyone produces can
be a totally new combination of words.
NOAM CHOMSKY
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Generative Grammar refers to the set of rules that
enables to understand sentences but of which we are usually totally unaware.
“that’s how you say it”RATHER THAN
“how that’s you it say”
Ex.
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Generative Grammar refers to the set of rules that
enables to understand sentences but of which we are usually totally unaware.
“Bob” and “him”
• Bob loves him.• Bob knows that his
father loves him.
Ex.
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Generative GrammarNOTE:
Generative grammar has nothing to do with grammar textbooks, whose purpose is
simply to explain what grammatically correct and
incorrect in given language.
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• All languages in the world must
sharecertain structural
properties.
NOM CHOMSKY
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• Chomsky and the other,Generative linguists like him
Shown that 5000 to 6000languages
in the world, despite their different grammars,
do share a set of syntactic rules and principles.
NOM CHOMSKY
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Universal Grammar and
Second Language AcquisitionL1 Input
UG Principle ParametersL2 Input
a grammar of L1
a grammar of L2
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