WEEK 1 Flashcards
what is VOT?
voice onset time: time interval between release of consonant and onset of voicing (BA has a shorter VOT then PA)
what does an infant need to learn first in order to develop language?
learn to distinguish phonemes
what is High amplitude sucking?
technique to test an infant’s ability to differentiate sounds
what is a technique to test an infant’s ability to differentiate sounds?
High amplitude sucking
what is habituation?
getting used to a stimulus to the point of not responding
what is Categorical speech perception?
perception of consonant sounds becomes categorical (different categories of sound)
what are the three basic steps of infants in forming language?
Cooing, reduplicated babbling, variegated babbling (11-12mnths).
what are the reasons that infants are only able to make selected sounds?
the way that their infant vocal tract in shaped and the lack of fine motor control.
Why can infants understand words before they can use them?
infants are usually able to comprhend words 4mnths before they are able to produce them.
what is the vocabulary burst?
a major increase in vocab size and rate after the first 50 words have been learnt.
what are the 3 reasons that the vocab burst occurs?
- infants learn the symbolic nature of language.
- their control of articulation increases and motor systems develop.
- as they get older they are able to easilier retrieve.
explain overextension and underextension:
over: using a general words for only one specific thing eg. using “dog” only as a name for the family dog. decreases as exsposure and vocab increases.
under: using a word to describe everything that appears similar eg. “dog” refers to all animals. This is because of lack of vocab eg doesnt know the word for cat, and also lack of exposure to a range of stimulus eg. has never heard someone talk about cats before.
what are two techniques that children use to communicate with others even before they can use specific language?
protowords: using stand in ‘words’/sounds to refer to something.
non-verbal functions of language: turn taking, change in pitch and intonnation.
what does holophrastic mean?
using a single word to stand in for an entire phrase.
what age do children start to combine words into sentences?
2 years. they begin to undertsand semantic meaning of words. eg. possession, naming, attributes, action.
what is the approx age that children start to resemble adult language?
4 years old.
what is the hierachy of language?
sentence phrase word morpheme phoneme
what is a phoneme?
meaningful unit of sound
what are the two types of morpheme?
unbound - words
bound - affixes, suffixes
what are the two types of unbound morphemes?
content - establish semantic meaning of the sentence. open ended/can be changed over time.
function: syntaxtic function - the structure/support words of the sentence, more set.
what is aphrasia?
the inability to produce pr undertsand language.
what is broca’s aphasia?
damage to the broca’s area of the brain resulting in loss of control of speech muscles - impairment to language production/speech.
what is syntax?
the rules in the structure of language, cued by word order. this means you can undertsand the meaning of the sentence even when you dont know the specific words.
what is werneickes aphasia?
having correct syntax but incorrect/incohenrent semantics.