T1:Lecture 2 Flashcards
What can infants perceive in terms of speech?
Basic phoneme contrasts
What does the high amplitude sucking technique show?
Infants discriminating basic phoneme contrasts. When novel contrast is shown, sucking rate increases. Once habituated to sound, sucking rate decreases
What does VOT stand for?
time interval between release of consonant and onset of voicing vowel
At what age do infants fine tune to a specific language?
9 months
What are the three stages of sound production?
- Cooing (2months)
- Reduplicated Babbling (6-7 months) Repetitive syllables C->V
- Variegated babbling (11-12 months) syllables with different C’s/V’s
What components of anatomy limit infants ability to produce sounds?
- Shape of vocal tract
- Development of motor tract
Relationship between comprehension and productive vocab
That comprehension precedes productive vocab by around 4 months
At what age do children have a vocab burts?
18-20 months
What does the vocab burst give
Increase in productive vocab after 1st 50 words learnt
Why do we see the vocab burst?
- Symbolic nature of language
- Control over articulation
- Easier retrieval
What is over-extension?
When a word e.g. dog is used to describe/identify dogs/cats/rabbits.
This is due to low amount of acquired vocab
What is under-extension?
When a word e.g. dog is only used for the family dog but not other dogs
In terms of non-verbal aspect, what else does communication do?
- Turn taking
- Pitch
What is meaning captured in?
The way something is said
What are holophrases?
Single words that stands for a whole sentence e.g ‘water’=can I please have some water?
