COM 350 Lecture Notes - Lecture 4: 18 Months, Universal Grammar, Statistical Hypothesis Testing
31 May 2020
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Learning: characteristics of language acquisition, typical: all* children learn their native language. Can create new sentences without a specific model. Language learning is not pure imitation: stages of language acquisition, language readiness: before words are spoken, a number of typical events show a readiness (or preparation) for language. Cooing (6-8 weeks): sounds resembling vowels and later consonants. Word recognition (before 1yo): children can recognize words before they can say them: first words: universally, appear around 1 year of age. Tend to be concrete (names, nouns, action verbs (go, eat, etc. Grammatical morphemes are absent (the, of, etc. : two-word utterances: emerge around 18 months and take the form of telegraphic speech, lacking grammatical morphemes. One new word every two hours: by age 2, most children"s vocabulary exceeds 200 words. There rabbit vs. there is a rabbit : basic mastery: between 2-4 years of age, children become incredibly verbal and vocabulary expands rapidly (800 words by 36mo, 1,600 words by 48 mo. )
