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Oct25 - Learning Phonology Phono categories in infants and...

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Learning Phonology Phono categories in infants and adults
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Today’s Outline Stages of Language Acquisition Early phonological development Production Phonological Errors Perception Categorical Perception
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Stages of Language Acquisition From birth – Reflexive vocalizations (crying, coughing, burping) 6 wks – Cooing 6 mo – Babbling 10 mo – One word stage phonology, word meaning, word  18 mo – Two word stage 2 yrs – Telegraphic Speech 2.5 yrs – Full Sentences
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Why do they Babble ? Vocal Play: learning to control articulation All kids babble--either vocally or manually Vocalizations change with development cooing: mostly vowels, long duration Babbling at 6 months: repeated CV syllables; crosslinguistically similar Babble Drift: older babblers use greater variety of syllables, less repetition, & greater similarity to target language
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Phonology in One-word speech Frequent phonological errors are target output Reduction ball ba Coalescence bottle ba (shrink to one syllable) Assimilation bottle baba Reduplication Daddy dada
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Oct25 - Learning Phonology Phono categories in infants and...

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