Child Language Acquisition Flashcards
Who theorised the Developmental Stages Model?
David Crystal
What are the five stages of the Developmental Stages Model?
Pre-Verbal
Holophrastic
Two word
Telegraphic
Post Telegraphic
Highlight some key features of the Pre-verbal Stage
Noises including:
Biological - 0-2 months, instinctual noises such as crying
Cooing - 2-6 months, experimental. noises such as laughter
Babbling - 6-12 months, playing with sounds both reduplicated and variegated
Intonation is being learnt
Highlight some key features of the Holophrastic Stage
12-18 months
Reliant on non-verbal (gestures) and is often referred to as the one word stage.
Content words with no grammar (concrete nouns eg cat account for 60% of first words according to Katherine Nelson’s study)
Have vocabulary of around 30-60 words
Understand stop it and come here
Express no
Highlight some key features of the Two Word Stage
18 months onwards
Demonstrate semantic relations between two words
Vocabulary expands leading to a vocab splurt/ naming explosion
30 months onwards begin to understand and apply syntax
Highlight some key features of the Telegraphic Stage
Begin to string more than two words together - 2-5 words or longer
Missing grammar words
3rd person
Highlight some key features of the Post Telegraphic Stage
At around 3 years old theres a dramatic change as they begin to use and to link ideas
Around 4 years more conjunctions (but, because) are introduction
Non-fluency - struggle to produce more complex sentences leading to stammering and repeating as they find what to say
Telling stories - using and then
What are the two common semantic errors in the Holophrastic Stage
Over extension
Under extension
Define Over extension, give an example
Misunderstanding the use of the word and using it in a wider context eg all men = dad
Define Under extension, give an example
Restricting the application of the word due to misunderstanding eg white being only associated with snow
What is a phoneme?
The sounds/blends of letters
What is a grapheme?
The visual representation of a sound
Which sounds restrict air flow?
Consonants
What sounds do not restrict air flow?
Vowel
Which type of development is slower than grammatical and lexical?
Phonological