CLA Flashcards
What are the 4 sections in the pre verbal stage?
Vegetative
Cooing
Babbling
Protowords
Describe the vegetative stage
0-4 months
Baby can make sounds of discomfort or reflexive actions
What is phonemic expansion?
When babies increase the number of sounds they can produce (as of the vegetative stage)
Describe the cooing stage
4-7 months
Baby can make sounds and vocal play using open mouthed sounds
Describe the babbling stage
6-12 months
Repeated patterns of consonant and vowel sounds
Describe the two types of babbling
Reduplicated babbling- ga ga ga
Variegated babbling- ga goo ga
Describe the proto words stage
9-12 months
Word like vocalisations, not actual words but sounds or formations that a child uses consistently for the same meaning
What is phonemic contraction?
From the proto words stage, babies slowly reduce the number of sounds they make to only those necessary for their language
What are the 4 stages of speaking development?
Holophrastic stage
Two word stage
Telegraphic stage
Post telegraphic stage
Describe the holophrastic stage
12-18 months
One word utterances are produced
What are the two theorists associated with the holophrastic stage?
Bee
Katherine Nelson
What was Bee’s theory?
A word is any sound that is used consistently to refer to the same thing.
What was Katherine Nelson’s study?
60% of first words are nouns. The rest is made up of actions, events, describing/ modifying things, personal/ social words.
Describe the two word stage
18-24 months
Two word combinations accompanied by some development of verb inflections or morphological development such as ‘s for plurals
Generally follows the SV pattern
It is a relatively short stage of a few weeks.
Describe the telegraphic stage
24-36 months
Three or more words combined
Early in the stage, verb inflections, auxiliary verbs, prepositions/adverbs and determiners are all omitted.
Describe the post-telegraphic stage
36+ months
More grammatically complex combinations, here key skills start to develop.
Remaining function words are acquired. Can use subordinating and coordinating conjunctions. Can manipulate verb aspects more accurately. Construct longer noun phrases.
What is the rate of lexical development at 12 months?
50 words but understand around 250
What is the rate of lexical development at 24 months?
200-300
What is the rate of lexical development at 36 months?
2, 000
What is the rate of lexical development at 5 years?
3, 000
What is the rate of lexical development at 7 years?
4, 000
What is the rate of lexical development at 11 years?
40, 000
Describe the nature of a child’s first words
First words are often proper or concrete nouns
They are often of a social/ interactive nature
Early vocabulary contains content words and function words are acquired later
Define phonology
The study of the sound systems of language and how they communicate meaning
Define phonetics
The study of the sounds used in speech including how they’re pronounced
Define phoneme
The smallest contrastive unit in the sound system of a language
Define morphology
The area of language study that deals with the formation of words from smaller units called morphemes
Define pragmatics
The factors that influence the choices that speakers make in their use of language
What is a content word?
A type of word that had an independent dictionary meaning, usually nouns, verbs adjectives or adverbs
What is a function word?
A word whose role is largely or wholly to express a grammatical relationship. Usually prepositions, conjunctions or determiners
Define a holophrase
A single word expressing a whole idea
Define a vocative
A form used to address a person
Define cohesion
The grammatical and lexical relationship within a text or sentence. Cohesion can be defined as the links that hold text together and give it meaning
Define a grapheme
A fundamental unit in a written language (alphabet letters)
Define a vowel
Sounds made without closure or audible friction
Define a dipthong
Vowels where there’s a perceptible change in sound quality such as: ew, au, oi
Define consonant
Produced when the vowel tract is blocked or restricted as to create audible friction
What are the 4 factors affecting consonant production?
Manner of articulation
Place of articulation
If voiced (by vibrating the vocal chords)
Or unvoiced (by not vibrating)
What is a plosive sound?
Created when the airflow is blocked for a brief time (voiced: B, D, G- unvoiced: P, T, K)
What is a fricative sound?
Created when airflow is only partially blocked and air moves through in a steady stream (Voiced: V, Z- unvoiced: F, S, T)
What is an affricative sound?
Created by putting plosives and fricatives together (voiced: D3- unvoiced tS)
What is an approximant sound?
Similar sounds to vowels (voiced w, r)
What is a nasal sound?
Produced by air moving through the nose (voiced m, n)
What is a lateral sound?
Created by placing the tongue on the ridge of the teeth and then moving down the side of the mouth (voiced: l)
What are the 7 early phonological errors?
Deletion Substitution Addition Assimilation Reduplication Consonant cluster reduction Deletion of unstressed syllables
What is the early phonological error of deletion?
Omitting the final consonant in words such as do(g)
What is the early phonological error of substitution?
Substituting one sound for another, particularly with sounds that develops later such as ‘sh’
What is the early phonological error of addition?
Adding an extra vowel sound to the end of words such as doggie
What is the early phonological error of assimilation?
Changing one consonant or vowel for another often in early plosive sounds of ‘b’ and ‘d’ e.g. gog for dog
What is the early phonological error of reduplication?
Repeating whole syllables e.g. dada
What is the early phonological error of consonant cluster reduction?
Clusters of consonants can be difficult for children to articulate so sometimes they reduce them to smaller units e.g. pider for spider
What is the early phonological error of deletion of unstressed syllables?
Omitting the opening syllable in polysyllabic words e.g. nana for banana
Describe the process of gaining semantic understanding
Learning the meanings of words, developing categories and heirachies, being able to link words such as pug, dog, animal
What is mutual exclusivity assumption?
A child believes that an object cannot be two things. A part of developing semantic understanding is to understand the hierachal nature of naming categories.
What is overextension?
Children often overextend a word’s meaning and link objects with similar qualities
What is underextension?
Less frequently, children understand a word by a narrower definition
What are the three types of overextension stated by Leslie Rescorla?
Categorical overextension, analogical overextension and mismatched statements
What is categorical overextension?
One member of a category is extended to all members of one category e.g. apple used for all round fruits
What is analogical overextension?
A word for one object extended to one in a different category; usually on the basis of a physical or functional connection e.g. ball used for a round fruit