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Welcome to the presentation. ‘ Does age affect L2 learning? ’ By Derek Cho. Reference. H. Douglas Brown. ‘ Principal of Language Learning and Teaching ’ . Pearson education
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Welcome to the presentation ‘Does age affect L2 learning?’ By Derek Cho
Reference H. Douglas Brown. ‘ Principal of Language Learning and Teaching’. Pearson education Julia Herschensohn. 1999 ‘ The Second time around Minimalism and L2 Acquisition. University of Washington. John Benjamins Publishing Company Rod Ellis. 1997. ‘ The Study of Second Acquisition’. Shanghai: Shanghai Foreign Language publishing company Jacqueline S. Johnson and Elissa L.Newport. ‘ Critical period Effects in Second Language Learning: The influence of Maturational State on the Acquistion of English as a Second Language’. Cognitive psychology 21: p.60-99
Critical period Hypothesis Definition: There is a fix span of years during which language learning can take place naturally and effortlessly and after which it’s not possible to be completely successful (Ellis, 1997). Definition: Child’s brain has a specified capacity for learning language – a capacity that decreases with the passages of years (Penfield and Robert, 1959)
Puberty Optimum Level Language Proficency Age Puberty 12-13
Neurological Development As the human matures, certain functions are assigned or ‘laternalized’ to either side of the brain.
Viewpoint for the critical period hypothesis • Scovel, Singleton: There is a critical period not only for first language but also second language acquisition. • Implication: Children are better learners than adults.
Levels of thinking skills • Identification • Extracting information • Sequencing • Comparison • Analysis • Application
Version 1 • The exercise hypothesis: Early in life, humans have a superior capacity for acquiring languages. If he capacity is not exercised during this time, it will disappear or decline with maturation. If the capacity is exercised, however, further language learning abilities will remain intact throughout life. • Implication: Second language acquisition should be equivalent in children and adults.
Version 2 • The maturational state hypothesis : Early in life, humans have a superior capacity for acquiring languages abilities for acquiring languages. This capacity disappears or declines with maturation. • Implication: Children will be better in second language learning as well as first.
Types of Comparison and contrast Child Adult L1 L2
Research • Subjects: 46 subjects • Early arrivals 23 subjects, late arrivals: 23 arrivals • 23 native speakers
Rule Types Tested in the Task 1. Past tense 2. Plural 3. Plural 4. Present Progressive 5. Determiners 6. Pronominalization 7. Particle movement 8. Subcateogoration 9. Auxillaries 10. Yes/No questions 11. Wh-questions 12. Word order
Examples • The farmer bought two pigs at the market. • The farmer bought two pig at the market. • The little boy is speaking to a policeman • The little boy is speak to a policeman • Yesterday the hunter shot a deer. • Yesterday the hunter shoots a deer
The relationship between age of arrival in the United States and the total score correct on the test of English grammar
Effects • 1. Age of Acquisition and ultimate performance • - Children have an advantage over adults in acquiring a second language. • 2. The effects of age of acquisition before versus after puberty • - Subjects who arrived in the United States after puberty performed more poorly than those who arrived earlier
Effect • 3. Support the maturational state hypothesis • - the age effect is present during time of ongoing biological and cognitive maturation and absent after the maturation is complete • 4. Age of acquisition and rule type • - unclear what part of sentence or grammar she/he is having problems with
Conclusion: Other factors affecting second language acquisition • 1. Levels of thinking skills • 2. Intervention of L1 • 3. Motivational factors • 4. Interlingual identification (Weinreich,1953) • 5. Storage of L2 information • 6.Personality