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Language Acquisition SLP329

"True words" Stable phonetic forms that are used consistently by the child in a particular context Resemble the adult word form phonetically
0 - 6 months... ATTEND to social partners. Participate in social interactions (eye contact, smile/laugh in response to adult interaction)
Joint attention -eye gaze, requests to look, pointing. (6 - 12 months...)
Intentionality/goal directness -baby begins to encode messages for someone else. Gestures demonstrate ability to plan and coordinate to achieve goal - no more trial and error. (8 - 9 months...)
Intentional communication -bid for attention accompanied by gesturing, pointing, showing, vocalizing (6 - 12 months...)
Representational competence -anticipation of future events, object permanence, symbolic play. (6 - 12 months...)
Why do babies babble? 1) exercises/stabilizes the vocal mechanism; 2) social attention; 3) self-soothing (it feels good).
5 stages of babble 1.Phonation stage 2.Coo-goo stage 3.Expansion stage 4.Canonical stage 5.Variegated stage
Phonation stage Reflexive and vegetative sounds (crying, burping, etc) [birth to ~1 month]
Coo-goo stage Back vowels (ah and ooh) with occasional consonant-like sounds (“contoids”) [~ 2 to 3 months].
Expansion stage Variety of vocalizations emerge; yell, growl, squeal, “raspberries” etc. (“vocal play)” [~4-6 months]
Canonical (reduplicative) stage Strings of nearly identical C’s and V’s appear (“bababa,” “mama” bo-bo-bo”…) Diverse consonant-like elements are used, with a preference for early-developing sounds in the native language. Still “non-meaningful” [~6-9 months]
Variegated (jargon) stage No longer only reduplicative. Adult-like prosody. Connected syllable strings resembling conversational speech with few real words present. Gestures, pointing etc. accompany vocalizations. [~ 9-12 months]
High babblers Some evidence that babies who produce complex babble (with diverse “contoids”) become more advanced early talkers. Little evidence of sustained superiority.
Low babblers There is little evidence of risk for later speech or language problems. May be monitored, but rarely will require intervention. Watch for emergence of words at next stage.
Non-babblers If no vocalizations by 12 months, referrals are appropriate. We want to rule out hearing problems, oral-structure deficits, or developmental delay.
Features of "motherese" that facilitate infant participation: Short utterances. Small object-centered vocab. Topics limited to here and now. Heightened facial expressions and gestures. Frequent questions and greetings. Turn-taking. Paralinguistic modifications. Verbal rituals.
Co-requisites for early communication development: 1) Cognitive dev. 2) Auditory perceptual dev. 3) Speech-motor dev. 4) Intact care-giver interactions
Created by: ashea01



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