Phonological and Semantic Development

Phonological and Semantic Development - Basic definitions...

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1 Phonological development in early childhood Basic definitions s Phonemes s Place of articulation s Manner of articulation s Phonotactics s Allomorphs s Stress and intonation Infant speech perception s High amplitude sucking method to determine discriminatory perception of sounds s Infants as young as 1 month of age can detect differences in r Place and manner of articulation of consonants r Contrasting intonational patterns (Jusczyk, 1992) Perception and discrimination beyond infancy s Infants start out with the ability to discriminate among sounds of any language s This ability is lost with time as they begin to focus on contrasts that are relevant to the language they are acquiring
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2 Ages and stages: Prelinguistic production s Birth – 2 months: Reflexive vocalizations r Vegetative sounds, crying, fussing r Sounds are related to biological fx s 2 – 4 months: Cooing and laughter r Comfort state vocalizations s 4 – 6 months: Vocal play r High/low; soft/loud; raspberries s 6 months and beyond: Canonical babbling s 10 months and beyond: Jargon Ages and stages: Prelinguistic production, cont’d s 6 months and beyond: Canonical babbling r CV syllables r Reduplicated babbling i.e., /bababa/ r Variegated babbling i.e., /bagidu/ s 10 months and beyond: Jargon r First true words imminent r Modulated or conversational babble s Clearly conveying meaning or imitating adult conversations Properties of babbling s Cooing is focused on vowels and back consonants s Babbling brings about shift to front consonants, esp. /m, b, d/ s Later babbling (11-12 months) includes roughly 12 consonantal sounds that account for most of consonants produced in speech s Predominant sound classes include stops, nasals, and glides Babbling and speech s Babies babble a small subset of sounds s Adult attention can increase amount but not type of babbles s Early speech develops gradually from babbling and typically co-exists with the true word stage for several months
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3 Protowords s Invented words that may occur at end of babbling period as child transitions to first true words
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This note was uploaded on 09/28/2011 for the course CSDS 7145 taught by Professor Garrity during the Fall '11 term at Armstrong State University.

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Phonological and Semantic Development - Basic definitions...

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