Exam 3 Flashcards

(131 cards)

1
Q

Language development similarities across cultures

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All languages are made up of the same basic units (i.e. all languages have nouns and verbs)
Basic course of language development (babbling, one-word stage, etc.) consistent across languages

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2
Q

Language development differences among cultures

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Different sounds in different languages
Early vocabulary differs across languages
Early grammar differs according to richness and regularity of morphology
Adults in different cultures talk to children differently- amount, infant directed speech, explicit instruction

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3
Q

Language socialization

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The process of learning how language is used in one’s culture
Different cultures emphasize different values through the use of different language practices
Members of different cultural groups may use language differently to convey similar ideas (directness, negativity, challenging adult authority)

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4
Q

How are language and cognition related? Possibilities?

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Language expresses independent cognition, language and cognition develop in tandem, language influences linguistic thought, language advances cognition, language shapes thought (Whorf hypothesis)

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5
Q

Possibility 1: Language expresses independent cognition

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Language and thought are independent systems
Cognition develops before/independently of language
Piaget: interactions with the world are the source of cognitive development; language comes later and allows us to express our thoughts
Fodor: conceptual understandings of the world are innate and make up the “language of thought” or mentalese- the process of language acquisition involves mapping words onto pre-existing concepts

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6
Q

Possibility 2: Language and cognition develop in tandem

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Words and concepts develop together and are mutually influential
Theory theory: the child constructs a conceptual understanding of the world based on continually changing/updating experience- as children acquire new concepts, they seek words for those concepts; as children learn new words, they seek the concepts that those words describe

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7
Q

Evidence for language and cognition developing in tandem

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Correspondence between children’s production of words and understanding of concepts- e.g., understanding of causality related to production of “uh-oh”
Labels as invitations for category formation- children who learn a name for a novel object or animal are more likely to notice the similarity between that object and other members of the same category than children who did not learn a name

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8
Q

Possibility 3: Language influences linguistic thought only

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Two types of thought (Slobin):
Nonlinguistic cognition (like Piaget or Fodor)- innate to all humans or acquired identically by speakers of all languages
Verbal thought- shaped by an individual's language
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9
Q

Evidence for language influencing linguistic thought only

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In English, if we use a pronoun for a person, we have to specify their sex- “my friend is having a party on Friday. s/he lives on Main St.”
In Hungarian, the same pronoun is used for males and females, so you don’t have to specify sex unless you want to- hungarian speakers often have difficulty learning the distinction between he and she
In Spanish, there are two different past tense forms- one for continuous actions of longer duration (e.g., “I lived in Mexico) and another for actions that happened at a single time point (e.g., “I was born in Mexico”)
In English, we only have one version of past tense- English speakers often have difficulty learning when to use each past tense form in Spanish (and other Romance languages)

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10
Q

Possibility 4: Language advances cognition

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Much of what we learn about the world (facts and conceptual understanding) is not learned through direct observation- history, religion and culture, chemistry and biology, geography
We have to learn from other people’s verbal testimony
Cultural differences in the information that is presented to children (and how it is presented) are related to differences in thinking about the world

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11
Q

Possbility 5: Language shapes thought- the Sapir-Whorf hypothesis

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Linguistic determinism: the language you speak determines the way you think about/view/conceptualize the world; the linguistic categories of your language determine the conceptual categories you recognize
Linguistic relativity: the language you speak affects the way you think about/view/conceptualize the world; the linguistic categories of your language influence thought

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12
Q

Tests of the Whorf hypothesis

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Early test: color perception

Modern tests: number, grammatical gender, spacial relations

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13
Q

Early Whorf tests: color perception

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General consensus: the number of color terms a language has does not influence speakers’ perception of color
The speaker’s ability to name the color does have some effect on their memory for a particular shade
This evidence against the influence of language on color perception was taken as initial evidence that Whorf was wrong

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14
Q

Modern Whorf tests: number, grammatical gender, spacial relations

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Recently, researchers have questioned whether color was the best domain to test the Whorf hypothesis- perception is biologically determined
Other domains of cognition may be more readily shaped by language- numbers, analogy, autobiographical memory, noun and verb meaning, grammatical gender, spatial relations, motion

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15
Q

Possibility 5 1/2: Language is the medium for thought

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Very similar to the traditional Whorf hypothesis
Says that some kinds of thought (i.e., higher cognition) require language to carry out
When language is used for these kinds of thought, the particular language used influences the way these thoughts are carried out

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16
Q

Testing the Whorf hypothesis: number words and concepts

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Humans and many other animals have an intrinsic ability to track quantities of three items or fewer- infants, moneys, pigeons, etc. can easily distinguish between 2 and 3, but have difficulty distinguishing 4 and 6
Learning number words seems to be necessary for learning number concepts- many children will point and recite number words before they really know how to count
Some languages spoken by small, non-industrialized tribes do not have number words that can represent all quantities- one, two, more than two; speakers of these languages do not seem to distinguish between quantities larger than three (e.g., 4 vs. 6)

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17
Q

Testing the Whorf hypothesis: Grammatical gender

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In many languages, nouns have grammatical gender
The grammatical gender system of a language does not seem to influence how speakers perceive nouns
Speakers provide more “feminine” adjectives to describe nouns with feminine gender and more “masculine” adjectives to describe nouns with masculine gender
Speakers rated pictures of feminine-noun objects as more similar to women, masculine-noun objects as more similar to men
Speakers assigned female voices to feminine-noun objects, male voices to masculine-noun objects

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18
Q

Testing the Whorf hypothesis: Spacial relations

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Some languages, like English, encode relative spatial relations- positions are described relative to their self or to other objects/locations- “in front of me,” “to the left of the bookshelf”
Other languages encode absolute spatial relations- positions are described using cardinal directions- “west of me,” “north of the bookshelf”
Speakers of absolute languages are better at cardinal directions than speakers of relative languages

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19
Q

What conclusions do these modern studies of the Whorf hypothesis draw?

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Speakers of absolute languages make more responses based on cardinal directions
Speakers of more relative languages make more responses based on relative position
But, Li and Gleitman found that English speakers made more absolute responses when they were outside. Their explanation: the differences found in behavior among speakers of different languages simply reflect their culture’s tendency to rely on external landmarks. It is not that the language is causing them to develop this tendency to use absolute frame of reference; it is that their way of life leads to both the use of absolute language and the tendency to use an absolute frame of reference

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20
Q

Simultaneous bilingualism

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Exposure to two languages from birth
Two main questions:
How do children differentiate between the two languages?
How does bilingual language development compare to monolingual language development?

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21
Q

Sequential bilingualism

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Exposure to one language from birth, then a second language is introduced later

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22
Q

Language differentiation

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How and when do bilingual language learners begin to distinguish between the two languages they hear?

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23
Q

Fusion hypothesis

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Children begin with one system for both languages and only later begin to separate the lexicon and the syntactic rules of each language

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24
Q

Differentiation with autonomous development

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Each language is a separate system from the beginning and the two do not influence each other

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25
Differentiation with interdependent development
Children differentiate between the two languages, but the two systems influence each other
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Phoneme discrimination
At 6 months, both English monolingual and French-English bilingual infants can differentiate French and English phonemes At 10 months, French-English bilinguals still discriminate phonemes in both languages, but English monolinguals can only do it for English This suggests that the timeline for developing phonetic systems is similar for monolinguals and bilinguals
27
Evidence for differentiation of phonology: Language dominance
Amount of exposure to each language may also play a role French-English 14-17 month olds differ on their ability to differentiate between phoneme contrasts in each language (Werker, Weikum, & Yoshida, 2006) If one language is dominant, the intact may develop a perceptual system that is more sensitive to the contrasts of that language
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Evidence for differentiation of lexicon: Mutual exclusivity
Multilingual 17-18 month-olds are more likely than monolinguals to accept two names for the same thing (Byers-Heinlein & Werker, 2009)
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Evidence for differentiation of morphosyntax: Code-switching
The use of more than one language (or dialect or register) within the same conversation, or even within the same sentence, example "sometimes I'll start a sentence in English y termino en español" Code switching is not an indication of incompetence-adult bilinguals who are fully fluent in both languages often use code-switching when communicating with other proficient bilinguals Competent code-switchers follow certain rules of combining languages- the rules of code-switching are dependent on the grammatical rules of each language involved Code switching occurs in such a way as to avoid syntactic violations in either language Children tend to follow these same rules
30
Evidence for differentiation of pragmatics: switching languages to be understood
Most children switched languages after a non-specific request (1-3) Most did not require that the experimenter explicitly ask them to switch languages (Comeau et. al, 2007)
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Effects of bilingualism
The evidence shows that bilingual children have a separate system for each language
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Vocabulary size and growth in each language
Bilingual children tend to know fewer words in each language than monolingual children know in their only language But bilingual children may know as many or more words across languages
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Gramatical (morphosyntactic) development in each language
Bilingual children reach grammatical milestones at the same time as monolingual children Early delays that have been shown in some studies disappear by age 10
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Metalinguistic awareness
Refers to the knowledge of the concept of language and awareness of how it works Bilingual children have been shown to have an advantage over monolinguals in metalinguistic tasks- syntax, phonology, pragmatics
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Cognitive flexibility
Evidence suggests a benefit of bilingualism on cognitive flexibility Symbol substitution task: In English this is called an airplane, but in this game its name is turtle. Can the turtle fly? How does it fly? In this game, the way we say I is to say macaroni. How do we say, "I am warm?" To be successful on this task, child must realize that words can be substituted for each other and be able to temporarily abandon the rules of English and substitute the rules of the game language
36
Bilingualism and executive function
Carlson & Melzoff Compared native bilingual and monolingual kindergarteners on EF tasks- including DCCS, Simon Says, Gift delay Controlling for SES, verbal ability, and age, bilingual children performed significantly better on EF tasks involving conflict- no advantage for delay tasks This advantage has since been shown as early as 24 months
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Bilingual brain development
In native bilinguals, the same areas of the brain are used for processing both languages Bilinguals use the same brain areas for language as do monolinguals The two language systems are not represented in distinct physical areas However, individuals who acquire their second language later in childhood show differences from native bilinguals in processing syntax
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Sequential bilingualism
It is commonly believed that children can acquire a second language as quickly and easily as they acquire their first language In fact, second language acquisition is often quite different from first language acquisition- different input conditions, one linguistic system already in place
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Influences on second language development
Sociocultural environment Child characteristics Age of acquisition
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Sociocultural environment
Acceptance of social groups that speak different languages Learner's motivation to acquire a second language- instrumental (e.g., for work or school), integrative (to feel like part of the community)
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Child characteristics
Phonological memory, sociability, age of acquisition
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Age of acquisition
The age at which a child begins to learn a second language can effect immediate and long-term outcomes Older children initially learn more quickly than younger children Children who start learning L2 at an earlier age eventually master the language more fully than children who began learning at an older age- phonology, syntax Earlier acquisition is related to long-term mastery of the grammar and phonology of L2 Though younger children may lag behind older children when they first begin to acquire a new language Early exposure to a language may prepare an individual to produce the sounds (but not the grammar) of that language
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Age of acquisition influence on grammatical development
Participants listened to sentences of English and judged whether they were grammatical or ungrammatical, example "The farmer bought two pigs at the market" vs. "The farmer bought two pig at the market" Earlier acquisition was associated with better judgements of grammaticality Individuals who began learning between 3 and 7 performed as well as native English monolinguals There was a steady decline in performance as age of acquisition increased
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Age of acquisition influence on phonology
Earlier age of acquisition is also associated with better mastery of the phonology of L2 Adults who began learning their second language in early childhood may sound like native speakers, while those who began learning later are likely to have a noticeable non-native accent Early exposure to a language can benefit later phonological mastery of the language even if the language is not spoken in childhood
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Age of acquisition benefits of "childhood overhearing"
Childhood overhearing does NOT benefit later morphosyntax Childhood overhearing DOES benefit later pronunciation An example of the phonological benefit of overhearing in childhood: childhood overhearers demonstrated voice onset times for stop consonants that were no different from native pronunciations, while late L2 learners pronounced the consonants more like English consonants
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Bilingual education
Involves instruction in more than one language- e.g., science class taught in Spanish and English Not equivalent to standard language instruction- e.g., Spanish class where language is explicitly taught Different goals of bilingual instruction: Teach the majority language to a minority group Give the children the benefits of a second language
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Bilingual school
Instruction in more than one language
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Immersion school
Earlier immersion --> better proficiency | Immersion students performed equally well in math and science
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Standard language instruction
Class where one language is explicitly taught
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Phonology in the school years
By kindergarten, most children can produce most of the phonemes of their language- some more difficult sounds take a few more years to master But phonological skills continue to develop- phonological awareness, phonological memory, phonological representations and comprehension in a noisy environment Phonological skills are important because they are related to reading skill
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Accent and dialect
Young children acquire the accent/dialect they hear most commonly in the input (i.e., their caregiver's accent) When children get to school and start spending more time with peers, they may begin to sound more like their peers than their parents- regional dialect differences if the family has moved to a different area Sociolect of the child/adolescent's group of friends- valley girl speech emerged among teenagers Older children and teenagers may choose to use different dialects/sociolects in different situations- may use a particular accent to demonstrate group membership
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Phonological awareness in preschoolers
Can recognize words that start with the same sound Identify rhyming words Identify the sound that beans with a word (more difficulty with consonant cluster onsets)
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Phonological awareness in kindergartners
Can tap out the number of syllables in a word | Separate words into their component phonemes (phonemic awareness)- e.g., cat= "c" "a" "t"
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Phonological awareness
Preschoolers with more exposure to songs, nursery rhymes, and word games have better phonological awareness English-speaking children with better phonological awareness in preschool have more advanced reading skill in at age 6 Reading an alphabetic system is related to maintenance of phonological awareness in adulthood Illiterate adults show low levels of phonological awareness Adults who read a non-alphabetic written language also show low levels of phonological awareness
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Why is phonology important for academic achievement?
Because it is related to reading skill
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Vocabulary size
During the school years, children's vocabularies continue to grow rapidly
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Characteristics of words learned during the school years
Compared to words learned before school, words learned in elementary school are: Longer in length Less commonly used More specialized in meaning (less general) More formal in usage More internally complex (greater number of morphemes)
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Deriving new words
During the early school years, children's understanding of how words can be built from other words improves Derivation: adding morphemes to change the part of speech of a word- e.g., adjective + ly= adverb; adjective + ness = noun
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Forming compound words
``` Combining two words into one This ability also continues to improve into adulthood What would you call: A house that a black bird lives in? Someone who builds houses for birds? A bird who builds houses? ```
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Learning new words
Preschoolers: fast-mapping By age 5: quick incidental learning School years- direct instruction
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Quick incidental word learning
Learning new words in context without explicit labeling- books, movies, TV, conversations in the real world
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Grammar in school years
By the time they get to school, children have already mastered most of the morphology and syntax of their language
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Sentence length and complexity in the school years
Children's sentences become longer and more complex as they use complex syntax more frequently
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Combinations of sentences into longer utterances in the school years
Older children are better able to combine sentences into longer monologues or narratives- use grammatical structures to make their discourse easier to follow
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Conversational skill
Developments in conversational skill continue into the school years- more contingent responses, longer dialogue, more responses related to the attitudes/beliefs of the other speaker, rather than just responding to factual content Gender-typed conversation changes may reflect the different social orders in groups of boys and girls- boys play competitively in large, hierarchically-arranged groups; girls play non-competitively in small groups or pairs of similar social status
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Narrative skill
"Good" Western narratives, as judged by Western adults, have: Coherence: the events in the story are all related Cohesion: sentences are linked to each other Story grammar: setting- place and characters, episodes- events, problems, resolutions of problems
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Developmental change in narrative
Age 3-4: events are disconnected Age 5: more coherent and cohesive, but some events not resolved Age 6: can tell a good single-episode story By age 10, children can coordinate and resolve multiple events in a story with all of the major components
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Comprehension monitoring
Preschoolers are able to take the listener into consideration, but even 5-year-olds sometimes fail to provide adequate information- referential communication task, children are better at repairing their message to aid understanding if they realize on their own that the original communication failed 5-year-olds also tolerate insufficient communication from others- they are overconfident in their understanding, they don't realize that the message was insufficient
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Understanding nonliteral language
Understanding of metaphor/simile, idioms, irony and sarcasm improves across middle to late childhood and into adolescence
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Why is nonliteral language more difficult to understand and produce than literal language?
Requires inhibiting a literal interpretation in favor of a nonliteral interpretation (executive function skill) Often requires flexible alternation between literal and nonliteral meaning (executive function skill) Requires an understanding that the speaker intends a nonliteral interpretation (theory of mind skill)
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How does school influence language development?
Kindergartners' and first-graders' lexical and grammatical skills improve more when school is in session than during summer vacation
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Providing definitions
``` Children in Western schools improve in their ability to provide formal definitions of words The larger (superordinate) category containing the word being defined The characteristics that distinguish this word from others ```
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Input from teachers
Sophistication of vocabulary Use of complex sentences Analytic talk- providing further explanation and description Correcting the content of children's speech
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The language of school and cultural mismatch
Learning the language and culture of the Western formal school setting is particularly difficult for children from other cultures Known-answer question: teachers often ask questions that they themselves know the answer to (e.g., "what's 2+2?") American parents do this too: "Where's your nose?" Non-Western parents are less likely to do this, so the structure is unfamiliar to their children when they reach school If the child's narrative style differs from the teacher's, the teacher may have difficulty providing feedback or scaffolding
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How natural is reading?
Human invent oral (or signed) communication systems anytime they interact with each other In contrast, written language has only emerged a few times in human history- most languages in human history have no writing system Children do not require formal instruction to learn oral or signed language In contrast, most children do require formal instruction to learn how to read
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Relations between spoken and written language
Proficient oral language does not lead to literacy | But proficient oral language can aid reading skill
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Writing systems
Alphabets, syllabaries, logographies
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Alphabets
Based on the alphabetic principle: each written symbol (letter) corresponds to a single phoneme- English, Korean, Greek, Arabic, Urdu, Russian, etc.
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Syllabaries
Each symbol corresponds to a syllable- Japanese, Cherokee
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Logographies
Each symbol corresponds to a word or multiple words- Chinese
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Relations between phonology and reading
Phonological awareness in pre-readers is related to their later reading ability through 4th grade Phonological awareness is a predictor of dyslexia Letter knowledge (knowing the names and sounds of letters) is also related to later reading ability and predictive of dyslexia Phonological awareness is particularly important in the early stages of reading
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Relations between vocabulary and reading
Children with higher vocabularies tend to be better readers than children with lower vocabularies Vocabulary is particularly important for later stages of reading after the basics have been established- reading comprehension vs. "sounding out" words Mutual influence between vocabulary and reading ability- children with higher vocabularies read more, children who read more learn more words
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Understanding decontextualized language
Spoken language is often contextualized- we talk about things that are happening right here, right now Written language is almost always decontextualized- the context doesn't help you decode the meanings of the words Children's experience with decontextualized spoken language (narratives, being read to) is related to their early literacy
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Role of dialect in learning to read
Many ethnic and social groups speak dialects that differ from the "standard" version of the language- e.g., Southern American English, Black English, New York Latino English, Chicano English These dialects have systematic morphosyntax and phonology that differs in some respects from Standard American English Speakers of these dialects may have difficulty learning to read and write Standard American English because the grammar, phonology, and lexicon differ from their native dialect
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Emergent literacy
Basic skills related to literacy that predict later reading and writing proficiency: Phonological awareness, letter knowledge Knowledge about books and using books Understanding the function of reading/writing
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Early experiences related to literacy achievement
Language use in the home- longer discourse and richer vocabulary Family literacy- reading at home
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Learning the reading process
Reading consists of: Recognizing the printed words Comprehending the larger meaning
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Alphabetic principle
Early readers have to sound out every word | With reading experience, readers are able to recognize more words on sign and reading becomes more fluid and faster
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Matthew effect
Kids who start out as good readers read more and become better reader Kids who start out as poor readers read less and don't improve
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Individual differences
Low-SES children are more likely to have reading difficulty than higher-SES children- many potential sources for this difference Dyslexia
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Dyslexia
A specific reading difficulty; reading ability lower than expected for the child's IQ The most common view is that dyslexia stems from an underlying phonological deficit Some researchers believe that there is also a general deficit in processing speed
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Methods for teaching reading
Phonics method Whole word approach Whole language approach
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Phonics method
Teaches children to decode the written word Learn sound-letter correspondences first and build up to whole words Bottom-up approach
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Whole world approach
Teaches children "sight words" Learn whole words first and decode into individual sound-letter correspondence from there Top-down approach
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Whole language approach
Gives children exposure to written word through literature | Interesting books and life experiences will give children a desire to read
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Which method is the best?
Phonics method
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Characteristics of signed languages
Lexicon: signs Sub-lexical components (like phonemes/morphemes): hand shape, location, movement Grammar: combinations of signs, non-manual signs (facial expression) Sign languages have no correspondence to the spoken language of the culture- ASL has nothing in common with English
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Education for Deaf children: oral schools
Historically, Deaf schools have emphasized oral language skill only No signing allowed Goal: mastery of spoken language
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Education for Deaf children: total communication
Recently, the total communication approach has become more popular then the oralist approach Use sign language or gesture (e.g., cued speech) to supplement spoken language Goal: mastery of spoken language
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Education for Deaf children: bilingual-bicultural
Acquire sign language as a first language, then begin to learn to read/write and/or speak the spoken language Goal: full bilingualism and exposure to Deaf and hearing culture
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Deaf children of hearing parents
Deaf children born to hearing parents who don't sign receive no linguistic input from their parents Children create home sign systems to communicate with family members- not full language, but contain words and basic grammar Some have their first exposure to sign language in school Some (i.e., those who attend oralist schools) may never be exposed to fluent sign, or only in adulthood Age of acquisition of ASL is related to fluency and proficiency 30 years later
102
Deaf children of Deaf parents
Children whose parents are native signers acquire sign language just like hearing children acquire spoken language- similar milestones and timecourse (slightly earlier first words), similar grammatical acquisition- overregularization, pronoun reversal Children whose parents are non-native (but fluent) signers still demonstrate typical language development- proficiency of parent input is related to children's language skill, but children can make use of imperfect input
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Cochlear implants
Device that is implanted inside the inner ear that converts sound waves into an electrical signal that stimulates the auditory nerve- results in simulated hearing, more channels --> better simulation of actual sound
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Cochlear implant influence on oral language
Deaf children who receive cochlear implants have better oral language skill than deaf children without cochlear implants Not as good as children born hearing
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Age of implantation effets
Age of implantation is related to oral language skill | Earlier implantation --> increased ability to interpret simulated sounds in a meaningful way
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The cochlear implant debate
Most hearing parents who have a child born deaf do not see a downside to cochlear implants Many members of the Deaf community think that cochlear implants are a threat to their culture- argue that deafness is not a disability that needs to be fixed, believe that deaf children should learn sign language and join the Deaf community Many deaf children of hearing parents feel torn between two cultures- not "true" members of the Deaf community because they are not native signers, can't fully participate in hearing culture because they can't hear
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Hearing children of Deaf parents (CODAs)
CODAs with native signing parents acquire sign language just like deaf children If both parents are deaf, CODAs may not receive spoken input from their caregivers- may receive spoken input from other family members, childcare, etc. Acquire spoken language once they enter school Very little research on CODA language development
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Language in blind children
Infants who are born blind have access to all of the same linguistic input as sighted infants
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Blindness: lack of access to nonverbal communication cues
Do not have access to eye gaze, pointing, joint attention
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Language milestones in blind children
Reach most language milestones at the same time as sighted children
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Phonological errors in blind children
Phonological errors for similar phonemes like /b/ vs. /m/
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Vocabulary in blind children
Fewer words for objects that can't be touched More words for objects associated with sounds Undergeneralization of nouns Later acquisition of "helping verbs" - probably related to fewer questions in parental input
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Holistic speech in blind children
More holistic, rather than analytic, speech | Didja, wanna
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Children with cognitive impairments
Studying language in children with cognitive impairments is useful for understanding the relation between language and general cognition
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Relations between language and cognition
If language is independent from other cognition, then it should be possible for a child to have a cognitive impairment that does not affect language If language is dependent on other cognition, then children's language should be affected to the same degree as other cognitive skills These questions are studied by comparing general IQ scores on language tasks
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Down syndrome: language skill relative to cognitive skill
Children with Down syndrome's language skills are more impaired than other cognitive skills- low language skill for IQ
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Phonology in children with Down syndrome
Difficulties with production that can last into adulthood
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Vocabulary in children with Down syndrome
Late to acquire first words, low productive vocabulary for mental age, comprehension in line with mental age
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Grammar in children with Down syndrome
Very slow development, follow the typical timecourse but much more slowly
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Communication in children with Down syndrome
Interested in communication from infancy Difficulties with secondary intersubjectivity Early conversational skill in childhood but difficulty in adulthood with more complex conversation and pragmatic rules
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Language skill relative to cognitive skill in children with Williams syndrome
Children with Williams syndrome have language that is less impaired than other cognitive skills
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Narratives in children with Williams syndrome
Can tell complex narratives
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Vocabulary in children with Williams syndrome
Can use advanced vocabulary | Still not on par with typically developing children of the same age, but relatively unimpaired for their mental age
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Production vs. comprehension in children with Williams syndrome
Production precedes comprehension Different timecourse than typically developing kids Don't always understand the words they produce
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Sociability in children with Williams syndrome
Very social and interested in conversation with others
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Memorization in children with Williams syndrome
Rely more on memory than understanding the rules of language and conversation
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Autism spectrum
Wide range of language and cognitive abilities Some autistic individuals never produce language or only produce echolalic speech- repeating what they have heard from another person
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How autistic language differs from typically developing children
``` Unusual prosodic patterns Differences in pitch and volume Similar vocabulary growth, but less vocabulary for mental-state words Most impaired in communicative and sociopragmatic development Little to no joint attention No pointing Pronoun reversal Difficulties with nonliteral language Limited range of conversational topics ```
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Specific language impairment
Children with language impairments that are not explained by hearing impairments, cognitive impairments, or autism
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Differences between children with SLI and typically-developing children
Tend to be late talkers Have smaller and slower growing vocabularies with very few verbs Particularly impaired in morphology and syntax
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Potential causes of SLI
Auditory processing- not supported by research Phonological memory Cognition- symbolic understanding, mental imagery, planning, reasoning, interference Language device impairment- "missing rule hypothesis" Language environment- not supported by research Neurobiology and genetics