GENERAL PSYCHOLOGY
Post on 22-Mar-2016
54 Views
Preview:
DESCRIPTION
Transcript
Lecture 8
LANGUAGE & INTELLIGENCE
Visiting Assistant PROFESSOR YEE-SAN TEOHDepartment of Psychology
National Taiwan University Unless noted, the course materials are licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Taiwan (CC BY-NC-SA 3.0)
GENERAL PSYCHOLOGY
LANGUAGE
DEVEL
OPMENT
T H E O R I E SA N T E C E D E N T S O F L A N G U A G E A C Q U I S I T I O NV O C A B U L A R YG R A M M A R
THE COMPONENTS OF LANGUAGE
Phonemes – basic sound units
Semantics – meaning of words and sentences
Grammar – structure of language (syntax, morphemes)
Pragmatics – conversational rules
HOW DO WE ACQUIRE LANGUAGE?
THEORIES OF LANGUAGE ACQUISITION
THE LEARNING VIEW
Reinforcement
(Skinner)Imitation(Bandura)
But how do children develop
language in a particular
sequence?
How do they acquire certain components of language even
without reinforcement or imitation?
THE NATIVIST VIEW
Chomsky’s LAD-
Language Acquisition
Device
Evidence:Certain
universal features in all
languages,Critical period in language acquisition
But… Social
context/culture is important – more differences than
similarities across languages
THE INTERACTIONIST VIEW
Innate ability + supportive
context(Tomasello)
Biologically programmed
ability to speak must be
complimented with extensive
experience with language
Children play an active
role in acquiring language
DIFFERENCES IN LANGUAGE LEARNING
Lack of stimulation
Deafness
Blindness
Language Impairments
LACK OF STIMULATION – MALTREATED CHILDRENThe Story of Genie
• Abused and never spoken to since birth.• Discovered at age 13, given rehabilitation.• Was able to use speech much like that of a
young child (“Another house have dog”).• Never able to reach the proficiency typical
for her age.
DEAFNESS• Language does not depend on the
auditory-vocal channel.• The American Sign Language (ASL)
involves a system of gestures.• ASL has hand shapes & positions for each
word composition. • Babies born to deaf ASL users (whether or
not they are deaf) can learn from caregivers through informal interaction.
BLINDNESS
• Blind children learn language just as rapidly and as well as sighted children.
• Vision-related words like “look” and “see” are understood in a different way – use of hands rather than eyes.
• Color words are learnt even without personally experiencing them – they can talk about the colors of things they are familiar with.
LANGUAGE IMPAIRMENTSAphasia- Disorder of language produced by lesions in
certain areas of the cortex in the left hemisphere.
- A lesion in Broca’s area = nonfluent aphasia (speech difficulty).
- A lesion in Wernicke’s area = fluent aphasia (comprehension difficulty)
LANGUAGE IMPAIRMENTSSpecific Language Impairment (SLI)- Syndrome in which individuals are very slow to
learn language.- Not caused by developmental disorders or brain
damage.- Throughout life, difficulty in understanding and
producing many sentences, even though intelligence seems normal.
SECOND LANGUAGE LEARNING• Knowledge of the first or native language
is so much better than knowledge of a second or third language.
• Evidence shows that the brain loci of late-learned languages usually are different from those of the first learned language.
• The older a person who is learning a second language, the more difficult it is to become fluent in that language.
WHAT DO DIFFERENCES IN LANGUAGE LEARNING TELL US?
THE CRITICAL/SENSITIVE PERIOD HYPOTHESIS• There is a sensitive developmental period
for language learning.• Language is most easily acquired in early
childhood.• Evidence for sensitive periods for language
acquisition comes from studies of severely maltreated children and second language learning.
BABIES’ COMMUNICATIVE EFFORTS
LANGUAGE DEVELOPMENT
Parents and infants engage in dialogue of sounds, gestures, facial expressions.
Infant grows as a communicative partner (Schaffer, 1996).
INFANT-DIRECTED SPEECH (ALSO MOTHERESE)
Gesturing sets the stage for language development….
(Goldin-Meadows, 2007)
6 months - most babies learn to use pointing gesture.
End of 1st yr, gestures to communicate, share their intentions with another (Tomasello et al. 2007).
ProtodeclarativeGesture intended to
make a statement about an object.
ProtoimperativeGesture intended to get
another person to do something for the child.
USING GESTURES
Beyond Gesturing…..
Receptive LanguageExpressive/Productive Language
RECEPTIVE LANGUAGE –EARLY SPEECH PERCEPTION
• As early as 1 month of age, infants can perform categorical speech perception.
• Ability to discriminate speech sounds, e.g. consonants.
• Exposure to specific or native languages determines ability to distinguish and categorize specific sounds/phonemes.
DISCRIMINATING BETWEEN LANGUAGES• 4-day-old babies in France & America can
discriminate between English and French speech.
• By 2 months, babies listen longer when their own native language is spoken.
TUNING IN TO ONE’S OWN LANGUAGE….
• Infants lose the ability to make phoneme distinctions that are NOT used in their language community.
• Japanese infants stop distinguishing between “la” and “ra”.
• Babies begin to listen specifically for the particulars of their own language.
PRODUCTIVE LANGUAGE – EARLY SPEECH PRODUCTION• Production of sounds in 1st yr follows orderly
4-stage sequence.• Crying Cooing Babbling Patterned
Speech.• Cultural differences in prespeech sounds
emerge around the babbling stage.• Babies start to tune in to the specific sounds
of their native language.
HOW CHILDREN ACQUIRE WORDSDifferent views on how children associate a
word with an object.1. Associations combined with attention to
perceptual similarity. 2. Use of social cues from adults to learn what
a word labels.3. Use of multiple cues that changes with age
– perceptual at early stage, social later.
HOW CHILDREN ACQUIRE GRAMMAR• By 2yrs of age, children begin to use 2-
word utterances (Telegraphic Speech/TS). E.g. ‘there book’, ‘more milk’• TS includes crucial words needed to
convey the speaker’s intent.• From 2 yrs onwards, children learn the
rules of grammar – understanding and acquiring morphemes (-s, -ing)
Grammatical Flowering (deVilliers & deVilliers, 1992).
In 3rd year of life…..• Sentence construction improves.• Increasing types of verbs, and tenses.• Ability to pose questions, using wh- words (what,
which, where, why).• Expressions of negation (e.g. “That not daddy”,
“No go school”).
LANGUAGE DEVELOPM
ENT
T H E S O C I A L U S E O F L A N G U AG EB I L I N G U A L I S M
THE COMPONENTS OF LANGUAGEPhonemes – basic sound units
Semantics – meaning of words and sentencesGrammar – structure of language (syntax, morphemes)
Pragmatics – conversational rules
USING LANGUAGE SOCIALLYChildren use language as a social tool
through….
1. Speech Acts = Expressions clearly referring to situations rather than to one object/action.
2. Discourse = Socially based conversation where children listen and respond to another’s speech.
THE RULES OF PRAGMATICS – Using Language Appropriate To A Given Situation
1. Engage attention of listener.2. Be sensitive to listener’s feedback and
respond clearly.3. Adjust speech to the characteristics of the
listener (e.g. age, culture, social background).
4. Adjust speech to suit situation (e.g. church)5. Learn to listen.6. Evaluate own and conversational partner’s
messages.
HOW EARLY DO CHILDREN LEARN THE PRAGMATICS OF LANGUAGE?
MAKING CONVERSATION AT 2YRS2-year-olds…• Addressed listeners during interaction• Directed communication to others when they
could see each other.• Made close contact to topic/object of
conversation.• Responsive to feedback.
(Wellman & Lempers, 1977)
ADJUSTING SPEECH 2-3-yr-olds used more repetitions and
more attention-eliciting words (hello, look) when talking to baby siblings than to mothers.
(Judy Dunn & colleagues)
CHILDREN’S LIMITATIONS…Less effective speakers when they must
compete with other adults or children.
Less competent when speaking about (i) Absent objects(ii) Feelings (iii)Thoughts (iv)Relationships
LEARNING TO LISTEN• Even 3-yr-olds can recognize ambiguous
messages and respond appropriately.
Revelle et al (1985)- When 3- and 4-year-olds heard ambiguous
requests (e.g. Bring me the refrigerator)….- Many understood that request was
problematic and requested more information (e.g. How? It is too heavy)
BILINGUALISM / MULTILINGUALISM
LANGUAGE DEVELOPMENT
A FEW CONSEQUENCES OF BILINGUALISM…• Learning of each language may be slower,
vocabularies of each language smaller.• Can use distinct sounds from each
language to deal with cognitive load from learning two languages.
• Skillfulness in 2 languages – better concept formation, flexible thinking.
CRIB BILINGUALISM…• Bilingual exposure in early infancy
enhances the ability to monitor and switch between competing tasks.
• Having to inhibit knowledge about one language while learning another language promotes executive control.
• Better cognitive flexibility and executive control – better ability to monitor, repair, and reinterpret sentences.
INTELLIG
ENCE
TYPES OF INTELLIGENCEF LU I D
• Ability to deal with new and unusual problems, likely to be a fast learner.
• Decreases with age.
• More susceptible to bodily changes.
C RY S TA L L I Z E D• Individual’s
acquired knowledge; useful for dealing with problems that are similar to those already encountered.
• Increases with age.
Sternberg’s Triarchic Theory of Intelligence
3 major components –(a) Information-processing skills: Encode, store,
and retrieve info.(b) Experience with given task: Exposure &
practice with particular intelligence task.(c) Ability to adapt to demands of context: Adapt
to requirements, select situation to meet abilities & needs.
Sternberg’s Theory of Successful Intelligence
Ability to meet own goals and those of his/her society.
3 abilities:1. Analytical: reasoning about best answer to
a question.2. Creative: devising new ways of addressing
issues and concerns.3. Practical: skills used in work, family life,
social/professional interactions.
Gardner’s Theory of Multiple Intelligence8 kinds of intelligence:1. Linguistic (e.g. poet, teacher)2. Logical-Mathematical (e.g. scientist)3. Spatial (e.g. engineer, artist)4. Musical (e.g. musician, composer)5. Bodily-Kinesthetic (e.g. dancer, athlete)6. Intrapersonal (e.g. novelist, actor)7. Interpersonal (e.g. psychotherapist)8. Naturalistic (e.g. biologist)
APPLICATION TO FORMAL EDUCATION?Gardner & Sternberg’s Project Zero
Practical Intelligence for School Program (PIFS)
• Positive effects on motivation, achievement, behavior.
PIFS• Students work through lessons that
develop their understanding of their own strengths and interests;
• The purposes of various school tasks (why is there homework and how is it similar to what adults do?);
• The demands of different subject areas (how is studying for a math test different from studying for social studies?);
• The many steps involved in school tasks (such as making plans and using resources); and
• The importance of self-monitoring through reflection (in journals and discussions).
INTELLIGENCE TESTINGIQ (Intelligence
Quotient) Index of a way a person performs on a standardized intelligence test relative to the way others of the same age perform.
WHY DO WE NEED TO MEASURE
INTELLIGENCE?
FLANAGAN & HARRISON, 20051. Predict academic performance2. Predict performance on the job3. Assess general adjustment & health
Problem with IQ Test Questions…- Are they accurate?- Are they culturally sensitive?
EXISTING INTELLIGENCE TESTSInfants1. Bayley Scales of Infant Development2. Fagan Test of Infant Intelligence- Primarily used to identify abnormal
development, determine child’s need for early intervention services.
Older children1. Stanford-Binet Test2. Weschler Intelligence Scale for
Children- Skills tested in WISC include factual
knowledge, long-term memory, short-term memory, reasoning, mathematical skills.
Adults1. Stanford-Binet Test2. Weschler Adult Intelligence Scales
(WAIS)- Skills tested in the WAIS include
verbal comprehension, perceptual reasoning, working memory, processing speed.
WHAT INFLUENCES INTELLIGENCE?
INDIVIDUAL DIFFERENCES IN INTELLIGENCEHeritability Ratios
• Proportion of variance in intelligence in a given population that is attributable to genetic factors.
• Estimates of 40%-70%.• Differences in heritability – some cultures or
socio-economic backgrounds facilitate/impede the expression of ‘intelligence’ genes.
CULTURE & INTELLIGENCE• Cultures may differ on conceptions of what
intelligence is.• Different cultures use different methods of
problem solving.• Cultures differ in the skills they need and
value.
POVERTY & IQ DEVELOPMENT• Children who live in poverty in their preschool
years seem more at risk than children who were not exposed to such levels of poverty until middle or late childhood.
• Genetic factors are more significant in high-SES than low-SES families.
• Impoverished environment cuts off genetic potential – so genetic blueprint matters less.
THE FLYNN EFFECT IQ scores seem to be rising at the rate of approx 3
points per decade.
Why? Improvement in nutrition and health care. Interaction among cultures – sharing ‘intelligence’ Genetics less significant – evolution takes much
longer.
top related