Topic 5 (development from 12-35 months) Flashcards
Language development from 12-35 months
Locutionary stage, can produce utterances that have meaning and intent, single words primarily, accompanied by gestures. Overlap between production of first words and earlier stages of prelinguistic development (canonical babbling and jargon stage) which can be heard up to 2 years. 18-24 months start combining words, 2-3 making complete sentences.
Language content development
): 12-18 months children typically acquire 50 words, receptive language precedes their expressive language means children can understand many more words than they can produce, 60-65% of first words are nouns (animals, food, toys)
Why are nouns developed first
parents most often use nouns with children, concrete and picturable, Initial lexical growth is slow from 12-17 months, steeper increase from 17 to 27 months, then returning to a steadier rate of growth until 30 months, 18 months to 6 years children will add approx. 5 words to their lexicon every day
Fas t mapping or quick incidental learning
. This process involves making a quick and incomplete representation of a new word based on the context in which its heard. This allows children to rapidly expand their vocabulary and learn new words in an efficient manner.
Underextension
refer to a child’s use of a word in a more restricted way than its conventional meaning. E.g. a child may usethe word dog to refer only to their own pet, rather than all dogs in general.
Overextension
: refer to a child’s use of a word in a broader way than its conventional meaning. E.g. a child may use the word dog to refer not only to dogs, but also to other animals such as cats or rabbits. language is developing as they can associate the word with the semantic features of other items (understanding dog is related to cat). common amongst toddlers in all languages, including sign language. one-third of a child’s first 75 words may be overextended.
Vocab size at each age
12 months: 5+ words
18 months: 10-20 words
24 months: 50-200 words
36 months: 900-1,200 words
Two word combination
typically occurs around the age of 18-24 months, when children have a basic understanding of the rules of language and have a growing vocabulary. Children start combining words when they have approximately 50 words. At this age children begin to combine words to form basic sentences, is initially no regard for word order
Semantic development
refer to the combination of two or more individual semantic roles. Typically, they express meanings that are additional to the meanings of individual words. Progressing to multi-word combinations requires the ability for the child to use the same vocabulary to express a variety of meanings.
Pronoun development
beginning to understand the concept of referencing people and objects without repeating their names. Usually will start using pronouns referring to self before to another person. Subjective pronouns typically acquired earlier than objective nouns. Possessive pronouns and reflexive pronouns acquired later.
-12-26 months: I, it
-27-30 months: my, me, mine, you
-31-34 months: your, she, he, yours, we
- Interrogative development
interrogative/question words used to ask a question. A form of pronoun. child is beginning to understand the concept of asking questions/seeking information. typically seen around 2 years. will use interrogatives more frequently and in a wider range of situations as lang develops
- Preposition development
Prepositions used to show the relationship between other words in a sentence. typically indicate the location, direction, or time of an object in relation to something else. shows that a child is beginning to understand the spatial relationships Begins around age of 2.
-24 months: in, on
-36 months: under
- Development of language form
(morphological development, ending of words) acquisition of morphemes is important for 12-35 months language development. MLUm is the average number of morphemes in an utterance.
- Development of language use
ability to use language in social situations, makes great progression from the ages of 12-35 months:
-12-18 months: gestures are combined with word-like vocalisations containing consonants.
-15 months: gestures are paired with eye gaze.
-16 months: gestures and words are used for object names.
-20 months: words predominate for object names.
-18-24 months: increasing word use over non-verbal communication; conventional words or word combinations are used with increasing frequency to express range of intentions.
- Discourse development
By 3 years children typically developed more complex language skills, able to engage in longer, more elaborate conversations with others. able to understand and follow complex rules of conversation e.g staying on topic, using appropriate social greetings. Narrative/story emerges from about 2-3 years. emergence of heap stories, stories that consist of a string of labels and simple descriptions of event actions, don’t contain any central theme or sophisticated story structure, made of simple declarative sentences added together.