4. language-acq-II - Language Acquisition (II): Milestones...

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Language Acquisition (II): Milestones Chapter 10 (pp. 303-316) Dr. Morten H. Christiansen 1
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Previous Class: Language Acquisition (I) Methods for Studying Language Acquisition Speech Discrimination Methods: High-amplitude sucking, conditioned head turn, preferential looking paradigm, preferential listening. Expressive Language Ability Methods: Diary study, elicited production. Critical Period for Language Acquisition Feral children: “The Wild Boy of Aveyron”, Genie. Phonological Development Basic Phoneme Distinctions: Innate universal speech sound discrimination capacity not species-speci±c. Perceiving Sounds in Context: Speaker normalization, vowel prototype representation. 2
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Milestones in Language Development Language Stage Beginning Age Crying Birth Cooing 6 weeks Babbling 6 months Intonation patterns 8 months One-word utterances 1 year Two-word utterances 18 months Word infections 2 years Questions, negations 2 1/4 years Rare and complex constructions 5 years Mature speech 10 years 3
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Development Crying: Non-linguistic Though some language specifc elements. Cooing: Non-linguistic Exercising the articulatory apparatus. Imitation and the beginning oF turn-taking. Babbling: Some phonological content. No meaning attached to the babble. DeaF inFants babble
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This note was uploaded on 11/14/2010 for the course PSYCH 2150 taught by Professor Christiansen, m during the Spring '09 term at Cornell University (Engineering School).

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4. language-acq-II - Language Acquisition (II): Milestones...

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