Explaining the first
language acquisition
● The behaviourists: ‘you say what I
say’
● The innatists: ‘it’s all in your mind’
● The interactionists: ‘it’s from both
inside and outside
Classification of Language
Acquisition Theories Around
“Nurture and Nature Distinction”
THEORIES BASED ON "NURTURE"(environmental
factors are believed to be more dominant in
language acquisition)
- Vygotsky’s Zone of Proximal
Development
- Skinner’s Verbal Behavior
- Piaget’s View of Language
Acquisition
Classification of Language
Acquisition Theories Around
“Nurture and Nature Distinction”
- The Competition Model (E. Bates)
- The Speech Act Theory
- The Acculturation Model
Classification of Language
Acquisition Theories Around
“Nurture and Nature Distinction”
-
Accommodation Theory
- The Interactionist View of
Language Acquisition
- The Connectionist Model
Classification of Language
Acquisition Theories Around
“Nurture and Nature Distinction”
THEORIES BASED ON
“NATURE”(innate factors are
believed to be more dominant in
language acquisition)
- A Neurofunctional Theory of
Language Acquisition
- The Universal Grammar Theory
- Fodor’s Modular Approach
Behaviourism
A theory of learning, most
influential in 1940s and 1950s, that
assumed people learn by imitation
and repetition. They are
encouraged to imitate through
consistent „positive reinforcement”
until habits are formed.
Behaviourists’ views on learning
the first language
Children imitate and practise the language
produced around them
The imitation is reinforced through
parents’ praise or successful
communication
Habits of „correct” language use are
formed
The quality and quantity of the language
the child hears as well as the consistency
and the intensity of the reinforcement
influence the child’s language behaviour.
B.F. Skinner (1957) Verbal behaviour
Behaviourists’ views on learning
the first language
Imitation:
Word for word repetition of all or
part of someone else’s utterance:
e.g.
Mum: „Shall we play with the puffer
train?”
Child: „Play with puffer train! Puffer
train!”
Behaviourists’ views on learning
the first language
Practice:
repetitive manipulation of form:
e.g.
Mum: „See, puffer trains have
wheels.”
Child: „Puffer train have wheels.
And car have wheels. They both
have wheels.”
Behaviourists’ views on learning
the first language
30% - 40% of children’s speech are
imitations of what someone has just said
Children imitate words and structures that
are just beginning to appear in their
speech
The imitation is structured (methodical)
The choice of what to imitate is based on
sth. new they have just begun to
understand and use.
Behaviourists’ views on learning
the first language
Points to consider:
- How do children choose what to
„practise”?
- How do children know how to
practise?
- Why do children who imitate less (by
20%) develop at the same rate?
- Why are children creative using
language?
Examples of children’s creativity
in language use
Patterns:
e.g.
Mum: „I think we need to take you to
the doctor.”
Child: „Can she doc my head?”
Examples of children’s creativity
in language use
Unfamiliar formulas
e.g.
Adult guest at a party: „I’d like to
propose a toast!”
Child: „I’d like to propose a piece of
bread!”
Examples of children’s creativity
in language use
Question formation
e.g.
„Are dogs can wiggle their tails?”
„Are those are my boots”
„Are this is hot?”
Examples of children’s creativity
in language use
Order of events
e.g.
„You took all the towels away
because
I can’t dry my hands.”
Innatists’ views on learning the
first language
●„The logical problem of language aquisition:
children come to know more about the
structure of their language than they could
reasonably be expected to learn on the basis
of the samples of language they hear”
Noam Chomski (1959),
review of B.F. Skinner (1957) Verbal behaviour
Innatists’ views on learning the
first language
The logical problem:
e.g. a)
John saw himself.
b) *Himself saw John.
c) Looking after himself bores John.
d) John said that Fred liked himself.
e) *John said that Fred liked himself.
f) John told Bill to wash himself.
g) *John told Bill to wash himself.
h) John promised Bill to wash himself.
i) John believes himself to be intelligent.
j) *John believes that himself is intelligent.
K) John showed Bill a picture of himself
howchildrenaskqus
Innatists’ views on learning the
first language
All human languages are fundamentally
innate
The input from environment (speech)
makes only a basic contribution – the
biological programming does the rest
Language develops in the same way as
other biological functions e.g. walking,
seeing
(animal instincts, critical period hypothesis, deaf
children/parents)
The same universal principles underlie all
languages (Universal Grammar)
Innatists’ views on learning the
first language
Universal Grammar – evidence:
– universality of complex language
(‘Stone Age’ tribe in New Guinea, 1930, Michael Leahy; Mt Kilimanjaro,
Bantu lg: Kivunjo, Cherokee)
- grammar in action: pidgins and
creoles
(children reinvent lg, Dereck Bickerton, 1970s sugar
plantations in Hawaii)
- mental disability, SLI
(Christopher)
- children brought up in different
environments (e.g. SAE vs. BEV)
Universal Grammar
- main assumptions
Universal Grammar – evidence:
- language universals
by Greenberg
(1966):
- lexical categories
(noun, verb)
- structure dependency
(SVO,OVS,VSO)
- phrase structure consisting of
Head, Specifier and Complement
- recurent structures
(phrases containing
a Head of the same type as the phrase)
Universal Grammar
- main assumptions
Universal Grammar – evidence
by Chomsky
:
-
People know which sentences are
grammatically well formed in their native
language
- They have this knowledge also of previously
unheard sentences
- So they must rely on mentally represented
rules and not only on memory
The final rules of a language depend on a set of
universal rules - principles (true for all languages)
and a set of parameters (features specific for the
particular language e.g. omission of a subject)
Universal Grammar
- main assumptions
Universal Grammar – evidence:
● language universals (principles)
by
Chomsky (continued)
- Projection Principle (syntactic structure is
determined by entries in the lexicon e.g. give, let)
- Subjacency Principle (any constituent of a
sentence that is moved can only cross one major
boundary e.g. questions)
- Binding Principle (anaphors e.g. himself, each
other can only refer to antecedents within the
same sentence (unlike other pronouns))
Universal Grammar
- main assumptions
● language universals (principles)
by Chomsky (continued)
- Grammar is generative: finite set of
words can generate an infinite number of
sentences
- The inborn grammar system specifies all
possible patterns which are correct and
excludes those that are not
.
.
Generative Grammar
- main assumptions
● language universals (principles)
by Chomsky (continued)
Many differences among languages represent
not separate designs but different settings of
a few "parameters" that allow languages to
vary.
The notion of a "parameter" is borrowed from
mathematics.
y = 3x + b
when graphed, correspond to a family of parallel lines with a
slope of 3; the parameter b takes on a different value for each
line, and corresponds to how high or low it is on the graph.
Similarly, languages may have parameters.
.
.
Generative Grammar
- main assumptions
● language universals (principles)
by
Chomsky (continued)
e. g. "null subject" parameter (sometimes
called "PRO-drop") is set to "off" in English
and "on" in Spanish and Italian
(Chomsky, 1981).
(In English, one can't say *”Goes to the
store”, but in French or Spanish, one can say
the equivalent.)
The reason this difference is a "parameter"
rather than an isolated fact is that it predicts
a variety of more subtle linguistic facts.
.
.
Generative Grammar
- main assumptions
● language universals (principles)
by
Chomsky (continued)
In null subject languages, one can say:
*”Ate John the apple?” or *”Do you think that left?”
This is because the rules of a grammar interact
tightly; if one thing changes, it will have
series of cascading effects throughout the
grammar.
*”
Do you think that left?”
is ungrammatical in
English because the subject of „left” is an
inaudible "trace" left behind when the
underlying subject was moved. In English trace
cannot appear after a word like „that”, so its
presence marks the sentence as ungrammatical.
.
.
Generative Grammar
- main assumptions
● language universals (principles)
by Chomsky (continued)
In French, Spanish or Polish, one can delete
subjects. Therefore, one can delete the
trace subject of „left”, just like any other
subject.
The trace is no longer there, so the
parameter that disallows a trace in that
position is no longer violated, and the
sentence sounds fine in in the ‘nul
subject’ languages.
Universal Grammar
- main assumptions
● language universals (principles)
by
Chomsky (continued)
- Language is structure dependent and provides
models of standard phrase types (deep
structure vs surface structure )
- Deep structure constituents are moved to new
slots to provide a surface structure pattern.
When it has moved it leaves a trace (t). It
enables the listener to retrieve the original deep
structure from the sentence.
e.g. Sara
is
reading
a book
.
What is Sara t reading t ?
Deep structure vs surface
structure
.
Approaches to Generative
Grammar
Aim: to come up with a set of rules or principles that will
account for the well-formed expressions of a natural
language. The term generative grammar has been
associated with at least the following schools of
linguistics:
Transformational grammar (TG)
Standard Theory (ST) (deep structure, surface structure,
1957-1965)
Extended Standard Theory (EST) (phrase structure, X-bar
theory, 1965-1973)
Revised Extended Standard Theory (REST) (restrictions
upon X-bar theory, move
α
1973-1980)
Principles and Parameters Theory (P&P) (1981-1990)
Government and Binding Theory (GB)
Minimalist Program (MP) (1990-present (a set of
questions and issues rather than a theory or a new
framework)
Approaches to Generative
Grammar
Relational Grammar (RG) (ca. 1975-1990,
subject, direct object, indirect object determine the
structure of utterances
)
Lexical-Functional Grammar (LFG,
movement
paradox: *I aren't allowed to do that
Aren't I allowed to do that?
)
Generalised Phrase Structure Grammar
(GPSG, context free)
Head-Driven Phrase Structure Grammar
(HPSG)
Categorial Grammar
Tree Adjoining Grammar
Generative Grammar
- main assumptions
Based partially on mathematical equations
generative grammar is a set of rules
which define a possibly infinite set of finite
strings
The ability to acquire such sets of rules is
most probably uniquely human.
The set, made up of fixed elements, provides
a framework for all the grammatically
possible sentences in a language, excluding
those which would be considered
ungrammatical.
Generative Grammar
- main assumptions
A classical generative grammar consists
of four elements:
A limited number of nonterminal signs
(e.g. word class labels like noun, verb, etc.) ;
A beginning sign which is contained in
the limited number of nonterminal signs
(e.g. sentence);
A limited number of terminal signs
(e.g.
vocabulary);
A finite set of rules which enable
rewriting nonterminal signs as strings of
terminal signs.
Generative Grammar
- main assumptions
If we take a generative grammar which consists of
the set of nonterminal symbols {X,Y} with X
the start symbol, the set of terminal symbols
{a,b}, and the rules X->aYb, Y->Xb, and Y-
>ba.
Applying X->aYb, followed by an application of Y ->
Xb yields the intermediate string aXbb. This string
still contains a nonterminal symbol. Therefore, it
requires reapplication of the rule X->aYb (yielding
aaYbbb) and subsequently the rule Y -> ba to
yield a string that consists solely of terminal
symbols, in this case aababbb.
Generative Grammar
- main assumptions
In English: the red book but *the book red
Descriptive grammar: adj. go in front of nouns, not after them
Generative grammar: the order specified in the rewriting rule: NP -> Det
AP N.
In this rule, a noun phrase (NP) is rewritten as a string in which
the Determiner (Det) is followed by the adjectival phrase (AP)
and the noun (N) in that order: NP -> Det AP N.
Replacing the nonterminal symbols Det, AP and N by the
terminal symbols: the, red and book resp. yields the red
book.
By contrast, the rewriting rule which makes adjectives end up
after nouns (NP -> Det N AP) is not part of the generative
grammar of English.
The generative grammar thus provides a fully explicit syntax,
rather than the informal or implicit characterization often
found in traditional grammars.
Generative Grammar
- main assumptions
Generative grammar is recursive, which
means that any output of application of
rules can be the input for subsequent
application of the same rule. That should
enable generating strings like:
the daughter of the father of the brother
of his cousin.
(NP -> NP’(D+N) + PREP + NP(D+N)’’)
Generative Grammar
- main assumptions
S - > (
NP(D+N)
+
VP(V+NP’(D+N
)))
e.g.
The dog
ate the bone
.
My sister
painted a picture
.
Some students
did their homework
.
The flood
destroyed many areas
.
S - > (NP(D+N) + VP(V+NP’(D+N)))
e.g.
The dog ate the bone.
Critique of innatists’ views on
learning the first language
Complex language is common
among human beings but so is Coca
Cola
Universal Grammar reflects
universal experience and limitations
of information processing
People learn to communicate
because it is useful in everyday life
Language vs thought
Language = thought?
Early behaviorists: „Thought equals sub vocal
speech”
(Smith , Brown, Toman and Goodman, 1947,
paralyzing drug
)
Language ≠ thought?
Levy: Language is independent of thought
and is served by a specialized module of
language-specific representations and
processes
(Williams syndrome, linguistic savants)
Language vs thought
- Language => thought?
Linguistic relativism: Thought is shaped
by the nature of language
Linguistic determinism: The way we
think is determined by the language we
speak (Sapire&Whorf)
(snow-Eskimo lg,
time-Hopi lg
Humboldt: “The differences between
languages are not those of sounds and
signs but of differing world views.”
(infants, animals, mental images)
Language vs thought
- Thought => language
Piaget: „The development of language is
determined by the stages at which
cognitive concepts are acquired.”
Boroditsky: “What we normally call
‘thinking’ is in fact a complex set of
collaborations between linguistic and
nonlinguistic representations and
processes”
(space/time)
Interactionists’ views on learning
the first language – latest
developements
Connectionism
:
learning from
environmental stimuli and storing this
information in a form of connections between
neurons
Learning a language is basically improving the
strength of your network's connections.
If the connections between the words are stronger,
you should be a better speaker, because you can
more easily come up with antonyms, synonyms
and other related words
(‘cow’, Parallel Distributed Processing,
past tense forms, less is more,)
Interactionists’ views on learning
the first language – latest
developements
An illustration of a simple neural network
Interactionists’ views on learning
the first language – latest
developements
Computationalism:
mental activity is
: the mind operates by
performing purely formal operations on
explicit symbols
(e.g word classes or functional categories)
-
symbolic sub-systems are designed to
support learning a particular skill e.g.
language
-
mind (and language as its representation) is
made up of a structure of explicit symbols (
) and
rules for their
internal manipulation
Interactionists’ views on learning
the first language – latest
developements
An artistic representation of a Turing machine
A Turing machine is a theoretical
device that manipulates symbols
contained on a strip of tape. Described
by
in 1937 it is a
computing machine (thus they have
never actually been constructed). They
help computer scientists understand
the limits of mechanical computation.
Interactionists’ views on learning
the first language – latest
developements
How language might be computed:
(theoretical constuct using the Turing machine model)
Socrates
is a man.
Every man
is mortal.
Socrates is mortal.
Reasoning – Artificial Intelligence!
Interactionists’ views on learning
the first language – latest
developements
Emergentism: learning is
a complex
phenomenon which results from the
aggregation, organization, and interaction
of component parts within a particular
constellation, system, or context
Linguistic emergentism assumes that
language use and acquisition emerge
from basic processes that are not
specific to language
Interactionists’ views on learning
the first language - overview
Human beings are able to learn from
experience
Cognitive development and acquisition of
language are connected and dependent
on each other (children use words for
concepts they understand e.g. „bigger”)
Environment plays a major role in the
development of language
Language is one of many symbol systems
developed in childhood (e.g. body
language, abstract maths)