speech sounds acquisition/vowels/dipthongs

development begins in…

utero

is vocalization present at birth?

yes

speech production is a…

fine motor movement

what are the two overriding principles of fine motor development?

cephalo caudal, proximal to distal

infancy anatomy

rib cage elevated, tongue fills mouth, no definite oropharynx

infancy physiology respiration

nose breathers, belly breathing

infant physiology lips

inactive

infant physiology tongue

up and down, in and out

toddler/child anatomy

ribe cage descends, facial skeleton growth

early speech sound production is linked to…

whole body movement and nasal sounds

term for when infants are crying..

inspiratory stridor

reflexive stage (0-2 months)

cough, cooing, crying, wawawa, burping

control of phonation (1-4 months)

vowel like and consonant like segments combined

expansion (3-8 months)

raspberries, isolated vowels

basic canonical syllables (5-10 months)

stops, plosives, glides

reduplicated babbling

series of same cv

non reduplicated babbling

series of different cv sequences

advanced forms (10-18 months)

complex syllables, jargon

i 

he, me, we, tree

I

hid, kit, mint

Ɛ

let, gem, head

æ

bat, fast, sack

ɝ

shirt, burn, her

ɚ

schwar,  mother 

Ʌ

sun, just, tuck

upside down e

schaw, again, first syllable

u

who, new, shoe

Ʊ

cook, would, hood, book

o

hoe, woe, low

Ɔ

crawl

a

hop, mop 

ɑaI

bye, sigh

backwards cI

boy, toy

aʊ̅

cow, wow, plow

eI

bay, say

oʊ̅

snow, blow