developmental phonetics Flashcards
children master all phonemes by age
8
speech is production is refined through puberty by
- increased precision
- reliability of speech patterns
a child is _______ a small version of an adult
NOT
infant diaphragm functions differently than adult diaphragm
birth, respiratory
alveoli (air sacs) begin to develop
2 months, respiratory
coordinates respiratory actions with the linguistic structures of an utterance (breath groups)
3 year old, respiratory
expel more energy than adults to achieve same level of loudness (more subglottal pressure)
4 year old, respiratory
adult-like patterns of respiratory function
7 year old, respiratory
same number of alveoli as adults
8 year old, respiratory
functional maturation of the respiratory system
10 year old
increased lung capacity
16 years and up, respiratory
- larynx is high
- short laryngealpharynx
- VFs are short = 5-7mm
- VF tissue is NOT layers
birth, laryngeal
vocal ligaments appear (major development in lamination)
1 year - 4 year
2 layers of vocal ligaments become differentiated
6 yr - 16 years and up