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First language acquisition theories

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Presentation on theme: "First language acquisition theories"— Presentation transcript:

1 First language acquisition theories
NATURE OR NURTURE? First language acquisition theories

2 Behaviourism Watson, Pavlov and Skinner Tabula rasa Focus on
observable behaviour role of the environment Imitation and practice

3 Pavlov and classical conditioning
Developing unconditioned responses through stimulus–response-reinforcement

4 Skinner: operant conditioning
We are goverened by the consequences of our actions

5 Behaviouristic pedagogy

6 Objections 1. "What children say" Jean Berko (1958):
wug-wugs, gling-glinged-glang wented, taked, mices, mouses, sheeps ett, kenyért, lót, tégem > Analogous thinking 2. "What children don't say" McNeill (1966): CHILD: Nobody don't like me. MUM: No, say "nobody likes me". (eight repetitions of this dialogue) MUM: No, now listen carefully, say "nobody likes me". CHILD: Oh! Nobody don't likes me. > Inability to imitate

7 Nativism/Innatism

8 Chomsky: genetic pre-programming
Based on 1. the Argument from the Poverty of the Stimulus 2. evidence of rule governed language generation

9 LAD, language universals
Example: SVO components in sentences - 75% of the world's languages: SVO (English, French, Vietnamese) or SOV (Japanese, Tibetan, Korean) % VSO ( Welsh) or VOS (Malagasy) % free word order (Latin, Hungarian), but SOV common: Márta tortát evett. „Setting the parameters” – matching UG to particular language

10 Criticism of Chomsky 1. Competence – performance - Performance igored
- Competence judged on the basis of intuitions? 2. Core grammar – peripheral grammar - focus on core grammar(?) only ?We was there. I ain’t no fool. 3. Syntax vs. semantics Colourless green ideas sleep furiously. My mother, he no like bananas. 4. Ignoring meaning, function, context - situation for child FLA

11 Functionalism Focus on imput: Interaction vs. exposure
Bruner’s Language Acquisition Support System (LASS) - parents communicate in ritualistic scenarios - easily comprehensible and predictable language - emotionally charged situations - repetition of acts and language

12 Motherese, parentese (interaction, initiation, response)
1. Simplified in grammar and meaning 2. Shorter sentences - about 4-8 words/ sentence, when speaking to 2-year olds 3. More restricted range of sentence patterns 4. Expansion and repetition of sentences

13 5. Slower speech 6. Use of special words and sounds 7. High pitch
8. High, rising intonation - looking for feedback. 9. Embedded in the here and now.

14 Findings from motherese
Not so partial and ungrammatical as suggested by Chomsky a large number of WH forms However No close correlation between motherese and child speech Not all social groups adapt speech to young children

15 Children do not simply repeat the language they hear from their caretakers.
They also produce utterances that they have never heard. Eszel tégem? Mummy sock.

16 Motherese: focus on meaning, not on grammar
Child : Mamma isn't boy, he a girl. Mother : That's right. Child : And Walt Disney comes on Tuesday. Mother : No he does not. Children’s mistakes not random errors - own grammar. INTERLANGUAGE

17 Negation sequence of English-speaking children
1. No and Not appear as single word sentences. 2. Two-word (pivot) sentences: No car, Not gone 3. Negative words used within constructions: You no do that, Mummy 4. Negative auxiliaries appear: Won't, can't 5. Not replaces no. Double negatives 6. Any, hardly, scarcely during early years of school.

18 Connectionism

19 Focus on neuro-programming: neurons, synapses, wiring, circuits
Where does language reside in the brain? Is there a LAD? Answer from neurology - Lateralisation - Left hemisphere: language and logical functions

20 Aphasia studies Paul Broca 1861: „Tan”
Broca’s aphasia: inability to form correct sentences, patient is aware of difficulty Broca’s area: responsible for grammatical structuring

21 Carl Wernicke, 1874: Wernicke’s area
Wernicke’s aphasia: grammatical correctness, semantically meaningless utterances, unaware of problem

22 Relation between Broca’s and Wernicke’s areas

23 Phases of development Before birth: neurons, wiring for life functions
0/1: "biological exhuberance„ neurons connect in response to environmental impulses Language: - vocal map of L1 is formed

24 1/10: flexible synapses, easily formed
Language: - sensorimotor connections flexible (no accent!) - vocab.learnt through repeated exposure and interaction After 10: "pruning" Language: fixed synapses

25 GENETICALLY PROVIDED BRAIN POTENTIAL
RICH ENVIRONMENT RICH BRAIN "Experts now agree that a baby does not come into the world as a genetically preprogrammed automaton or a blank slate at the mercy of the environment ... Learning happens by the interaction of the genes and the environment.„ (S. Begley)

26 Critical period in FLA:
- no hope after CP Critical period in SLL/SLA: - weak version: difficult - strong version: impossible

27 Alternative considerations and counterevidence
Left/Right cooperation in SLL strategies of acquisition guessing meaning formulaic utterances Hill (1970), Sorenson (1967): multilingual tribes, no accent

28 Areas of change Neurological Psychomotor Cognitive Affective Pruning
Lateralisation Psychomotor Accent Cognitive Concrete Formal thinking Affective Inhibition Motivation

29 Personality factors Talent: neurological flexibility
New wiring for L2 Talent cluster Motivation, + attitude, involvement Strategies Active

30 Conclusion Language learning, a unique human capacity: neurological basis Genetic programme + environment Learning capacity limited by time (CPH) Loss of unconnected neurons and unused synapses Also influenced by personality factors


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