statistical learning Flashcards
can infants learn about language in the womb?
yes - they can hear language, patterns of speech - not innate
do infants make contrasts with other languages while in the womb?
- they only make contrasts present in their own language while in the womb - new borns are better than 1 year olds - they differentiate between lanuages
example of infants only making contrasts in their own language -
in Hindi 2 ‘d’ sounds. this is discriminated in all newborn infants and Hindi 8 month yr old but not English 8 month old.
infants are born with the capacity to learn languages but…
if they aren’t being taught it they lose that ability
Chomsky - learning theory
argued that parents reward children for
grammatical utterances, punish them for ungrammatical utterances - BUT this does not happen
2 more things that Chomksy believed?
- believed certain aspects of language
(e.g., grammar) were innate because of the poverty of the stimulus (the
input available to the child was insufficient to be learnable) - believed in a universal grammar - all languages share certain principles - innate
research disproving some of chomsky’s beliefs…
research can’t identify grammatical structures common to different languages
what do learning theorists argue today?
-that language can be learned using general learning mechanisms - like statistical learning - learning of patterns
language is -
predictable
how is language predictable?
gramatical categories occur in predictable positions in sentences = frequent frames
these frames occur reliably in child input… help children learn about grammar (Mintz)
Brain is specialized for statistical learning - which assists language learning
brain is specialised for…
statistical learning which assists language learning
what did that recording show us
(four “words”: tupiro, golabu, padoti, and bidaku)
stimulus is not impoverished at all- the info is there in the environment already
also showed that babies understand the word even if they don’t comprehend it
overview of the method of Teinonen’s study
- sleeping newborns - listened to nonsense sound.
- wakes up and listened to same sound with new words added.
- measured brain activity
results of Teinonen’s study:
brain responds differently to old and new words
pattern recognition is excellent - even while asleep they use familiarity to group together sounds/ words.
behaviour is predictable - 2 different theories
- infants have an innate theory of mind (understanding that people have goals etc)
- infant’s statistical learning allows them to learn about pattern behaviour
Baldwin’s experiment
infants shown videos of complete and non-complete actions. they are more interested in the mid-action sequence.
interpretation of Baldwin’s experiment
(hint - infants )
- infants do not need an innate social understanding
- infants learn to predict patterns in behaviour
- only years later do they work out there are mental states behind behaviour
so what is innate?
statistical learning - the ability to learn about patterns in language and behaviour - etc
SLI:
special language impairments
- short sentences - small vocab etc
3 conclusions of Evans et al:
Typically developing children are good at learning about patterns in syllables and tones
Children with SLI have general difficulties learning about patterns in syllables and tones
Better statistical learning = better language ability
question of Evan
do SLI children have a specific difficulty with language stimuli or general difficulties w statistical learning
statistical learning with autism - hypothesis
would children w autism have difficulty detecting co-occurences amongst syllables ?- as they have poor language and understanding others ability
studies that have examined activity in brain areas in certain brain regions when listening to random / nonrandom syllables show…
(autistic children vs typically developing children)
typically developing children = increased activity when listening to non-random syllables vs random syllables
autistic children = no increase
what do brain activations indicate when listening to random / nonrandom syllables?
indicates differentiation of random and patterned sounds
more severe autism = less differentiation
As brain activation decreases -
communicative difficulties increase
autistics do not show a difference in brain activity when they listen to random and non-random syllables
this may help to explain their symptoms (the difficulty in detecting statistical regulalities)
what are frequent frames?
gramatical categories that occur in predictable positions in a sentence
what did Mintz say about frequent frames?
these frames occur reliably in child input = help children learn about grammar