2- Language Development Flashcards
(42 cards)
what is phonology?
the ability to make sense of the incoming speech stream
what is semantics?
The ability to understand word meaning
what is grammar?
The ability to combine words into longer phrases
when does phonology commence?
0-1 years
when does semantics commence?
1-2 years
when does grammar commence?
2+ years
what did DeCasper & Fifer 1980 find?
that babies learnt and responded to their own mother’s voice more than the voice of a stranger.
ten 3day olds
-short bursts of sucking produce mothers voice and long burst produce strangers thus should suck more to hear own mother
8/10 sucked more often
what did deCasper and prescott find? 1984?
that there was no preference for a fathers voice in regard to mother/stranger listening experiment and thus learning of voice didn’t happen in 3 days since birth but rather in the womb
what did deCasper and Spence 1986 show?
babies have a preference for hearing cat in the hat over other passages- children can perceive rhythm
what do all deCasper’s studies in general show?
These studies tell us that children can perceive the rhythm, pitch and intonation of the speech stream even in the womb.
what are phonemes?
the smallest units of sound that speech can be decomposed into b/d/g
when can infants distinguish phonemes by?
1-2 Months
give e.g’s of phonemes that exist in English but not Japanese
I and R
describe what happens with phonemes as a child ages?
what is this known as
6-moths- can initially discriminate between a wide range of phonemes (across languages) (EMIAS ET. AL 1971)
6-12 moths- loose ability to discriminate speech sounds which are not differentiated in their own language e.g. the two ‘t’ sounds used in Hindi
known as perceptual narrowing
what did Kuhl et al. show?
english infants exposed to mandarin retained more of the phoneme discriminations made in that language at 12 months than those who weren’t trained
NB: only with interpersonal experience and not video
what is motherese?
speach with a special structure, rhythm and content. (Newport et al.) characterised by high pitch, slow pace and exaggerated intonation (changes in pitch).
how does motherese help babies?
breaks up the speech stream
what have studies found about motherese?
pauses and pitch changes help with understanding phrases- Cutler
Infants prefer to listen to motherese than normal speech- Simon and Fernald
how and why does a baby create an environment to get adults to speak to them?
by babbling- to induce reaction–> rich auditory environment
Speech perception is driven by ….a…… combined with ….b…..with the languages in our environment during infancy.
a) innate mechanisms
b) socially scaffolded experience
what will a baby with two deaf parents do?
will attempt to do some signing action instead of babbling.
what do children produce in 6-9 months
speech like behaviours:
echolalia
babbling
turn-taking
what is echolalia?
mumumum dadada
what are the most common first words?
OBJECT NAMES (‘teddy’, ‘dog’, ‘mummy’)