Chapter 6 - Language Development Flashcards
(34 cards)
what is language?
- Language is a symbol system
- Symbol systems represent and convey information
- 1 thing stands for something else (Eg. Numbers, maps, language)
- Words are social conventions (arbitrary relationships agreed upon by a social group)
what makes something a language?
- Researchers agree that the human language is a language due to “generativity” - the ability to convey an infinite number of novel concepts
- Ex. “last night around 11:19pm I was sitting in the middle of the road eating chicken and watching a TV show about Santa Claus and aliens throwing a birthday party” -> even though I’ve never heard this exact sentence before, I understand the concept
- So things like stop lights, thermostats, crying babies, and bee dances aren’t a language -> can’t convey infinite concepts
4 components of language
- Phonology
- Semantics
- Grammar
- Pragmatics
phonology
Phonological development: learning about the sound system of a language (phonemes)
Semantics
Semantic development: learning about expressing meaning (morphemes)
Grammar
Syntactic Development: learning rules for combining sounds/words (syntax, grammar)
Pragmatics
Pragmatic Development: learning how language is used (metalinguistic knowledge)
Language comprehension vs. language production
- Language comprehension: understanding what others say (or certain aspects)
- Language production: actual speaking (or manually producing) those aspects
- Language comprehension precedes production
- Proof: infants recognize their own name at 4.5 months; can look at the correct person at 6 months when they hear “mommy” or “daddy”; 12-14 month olds listen longer to sentences with normal word order rather than scrambled order; 13-15 month olds appreciate word combinations carry meaning beyond the individual words (eg. “She’s kissing the keys” vs. Kissing a ball -> kids can look at the right image depicting the phrase)
Language development stages
- cooing stage
- babbling stage
- holophrastic period
- telegraphic speech
cooing stage
- starts 6-8 weeks
- Produce simple speech sounds (goo, ahh) and vocal gymnastics (smacks, clicks, bubbles)
- Improved motor control of vocalizations
- Imitate sounds of sounds of their partners, high pitched for mom and lower for dads
- Will imitates speech sounds they hear from a tape
babbling stage
- starts 6-10 months
- Produce vowel consonant syllables in repetition (bababa)
- Babble only a limited set of sounds, some not in their native language
- Gradually it takes on the sounds, rhythm, and intonation patterns of the language they hear around them
- Adults can pick out the babbling of an infant from their own language from infants in other languages
- Deaf infants exposed to sign language manually babble
holophrastic period
- starts 10-15 months
- One-word utterances that express a whole phrase/message in one word (ie. “drink”, “up”, etc.)
- First words include mostly nouns (ie. Mama, dada, ball), frequent events or routines (ie. Bye-bye, night-night), some modifiers (mine, all gone, uh-oh)
- Overextensions sometimes occur (ie. Dog for other animals, daddy for all men) - probably due to their limited vocabulary rather than lack of knowledge)
telegraphic speech
- begins at end of 2nd year ~24 months
- Begin to combine words into simple “sentences”
- Only 2 word utterances (simplifying the message by only including essential elements - like in telegrams) ie. More juice, hurt knee, eat cookie
- Gradually child begins to add first person pronouns, verb endings, plurals, e.g. “I eating cookies” then
functions words etc. a, the, of, in… - Practice on their own “Crib-talk”
- Begin to combine words into simple sentences -> “internalization of grammatical rules”
evidence for internalization of grammatical rules
- Consistent word order (ie. Never “cookie eat”)
- Overregularization errors (ie. Goed, foots, mans)
- Application of rules to novel words (eg. The Wug test)
UG (Universal Grammar) and IGR (Internalized Grammatical Rules)
- UG: abstract concept that there are components that exist across all languages (ie. All languages have verbs)
- IGR: acquired, learned, and specific to the particular language you’re learning
Parts of Brain relevant for language
- Wernicke’s area: language comprehension
- Broca’s area: language production
Language learning facts
- We know 60,000+ words by the time we graduate high school. That’s ~10 words a day (or 100 1/10ths of a word)
- Recovering facts = slow, hard; but recovering words = fast, effortless
- Fast-mapping: Mapping words to its referent from brief single exposure or incidental exposures rather than direct teaching. The word can be used by contrasting familiar and unfamiliar but need not be
- Ex. Can learn words like “chromium” just by experiencing it once (ie. Study where there was a red and silver tray, kids could bring them the silver/chromium tray easily even if they didn’t know what the word meant, because they knew that the red tray was red)
2 problems kids encounter when learning languages
- the word-segmentation problem (parsing problem)
2. the Quinean reference problem
What is the word segmentation problem (parsing problem)?
- No way to use silences in the speech stream to mark boundaries of words
- We need to actually know what the word is
how do infants solve the parsing problem?
- infants pick up on statistical regularities (eg. Co-occurrences)
- Ex. In the word “pretty”, the sound “pre” often co-occurs with “tty”, so infants can pick up on this pair once they hear it enough and associate it with one word: “pretty”
- Prosody
- Infant directed speech (IDS)
- Scaffolding: conversation and narrative schemes
prosody
the characteristic rhythm, tempo, cadence, melody, intonation pattern, stress, etc. With which language is spoken
infant-directed speech (IDS)
- characterized by emotional tone, slow and clear, exaggerated speech, exaggerated facial expressions
- Infants like IDS better than regular speech, perhaps because they learn more words in IDS
- IDS is not universal, but is very common
what is the Quinean reference problem?
- Figuring out what words refer to
- When we hear a word in an unknown language, it could refer to pretty much anything (ex. “Gavagai”)
how to infants solve the Quinean reference problem?
- behaviourist/associationist account
- whole object bias
- basic level bias
- shape bias
- function bias
- linguistic context
- syntactic bootstrapping
- mutual exclusivity bias
- theory of mind and pragmatics