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Thinking and Language
Chapter 10
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Thinking
Thinking, or cognition, refers to a process that involves knowing, understanding,
remembering, and communicating.
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Cognitive Psychologists
Thinking involves a number of mental activities, which are listed below. Cognitive
psychologists study these in great detail.
Forming ConceptsProblem solvingDecision makingJudgment formation
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Concept
The mental grouping of similar objects, events, ideas, or people. There are a variety of chairs but their common features define the concept of a chair.
Concepts provide us with much information without much cognitive effort.
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Category Hierarchies
We organize concepts into category hierarchies.
Courtesy of C
hristine Brune
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Development of Concepts
We form some concepts with definitions. For example, a triangle has three sides. Mostly,
we form concepts with mental images or typical examples (prototypes). For example, a robin is a prototype of a bird, but a penguin
is not.
Triangle (definition) Bird (mental image)
Daniel J. C
ox/ Getty Im
ages
J. Messerschm
idt/ The Picture C
ube
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Categories
Once we place an item in a category, our memory shifts toward the category prototype.
A computer generated face that was 70 percentCaucasian led people to classify it as Caucasian.
Courtesy of O
liver Corneille
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PROTOTYPES
• Once we place an item in a category, our memory for it later shifts toward the prototype. This affects recognition time.
• If behavior doesn’t fit our prototype we are slow to recognize it..
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Problem Solving
There are two ways to solve problems:Algorithms : Methodical, logical rules or
procedures that guarantee solving a particular problem.
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Algorithms
Algorithms, which are very time consuming, exhaust all possibilities before arriving at a
solution. Computers use algorithms.
S P L O Y O C H Y G
If we were to unscramble these letters to form a word using an algorithmic approach, we would face
907,208 possibilities.
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Heuristics
Heuristics are simple, thinking
strategies that allow us to make
judgments and solve problems efficiently. Heuristics are less
time consuming, but more error-prone than algorithms.
B2M
Productions/D
igital Version/G
etty Images
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Heuristics
Heuristics make it easier for us to use simple principles to arrive at solutions to problems. Heuristics are used to
reduce options, then we use trial and error.
S P L O Y O C H Y GS P L O Y O C H G YP S L O Y O C H G YP S Y C H O L O G Y
Put a Y at the end, and see if the wordbegins to make sense.
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Insight
Insight involves a sudden novel
realization of a solution to a
problem. Humans and animals have
insight.
Grande using boxes toobtain food
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Insight
Brain imaging and EEG studies suggest that
when an insight strikes (the “Aha” experience),
it activates the right temporal cortex (Jung-Beeman, 2004). The
time between not knowing the solution and realizing it is 0.3
seconds.
From M
ark Jung-Beekm
an, Northw
estern U
niversity and John Kounios, D
rexel University
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COMPONENTS OF PROBLEM SOLVING
• Understanding the problem or diagnosis
• Devising a plan to solve it
• Executing the plan
• Evaluating the results
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Strategies for Problem Solving
• Decomposition: divide into smaller, more manageable subproblems
• Work backward
• Find analogies
• Incubation (forgetting incorrect ideas that may have been blocking the path)
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Obstacles in Solving Problems
Confirmation Bias: A tendency to search for information that confirms a personal bias.
2 – 4 – 6
Rule: Any ascending series of numbers. 1 – 2 – 3 would comply. Ss had difficulty figuring out the rule due to a confirmation bias (Wason, 1960).
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CONTRIBUTING TO CONFIRMATION BIAS
• COGNITIVE CONCEIT
• COGNITIVE LAZINESS
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Fixation
Fixation: An inability to see a problem from a fresh perspective. This impedes
problem solving. Two examples of fixation are mental set and functional fixedness.
The Matchstick Problem: How would
you arrange six matches to form four equilateral triangles?
From
“Problem
Solving” by M
. Scheerer. C
opyright © 1963 by
Scientific A
merican, Inc. A
ll Rights R
eserved.
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Mental Set
A tendency to approach a problem in a particular way, especially if that way was
successful in the past.
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IGNORING NEGATIVE EVIDENCE
• The absence of symptoms can provide important evidence for or against a hypothesis, but symptoms or events that do not occur are less likely to be noticed and observed.
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MULTIPLE HYPOTHESES
• Too many hypotheses may be an obstacle to problem solving because of the limitations of short-term memory/
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Functional Fixedness
A tendency to think only of the familiar functions of an object.
?
Problem: Tie the two ropes together. Use a screw driver, cotton balls and a matchbox.
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Functional Fixedness
Use the screwdriver as a weight, and tie it to the end of one rope. Swing it toward the
other rope to tie the knot.
?
The inability to think of the screwdriver as a weight isfunctional fixedness.
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OBSTACLES TO PROBLEM SOLVING ACTIVITY
• POSSIBLE OBSTACLES:– Multiple hypotheses– Mental sets– Functional fixedness– Ignoring negative evidence– Confirmation bias
• Cognitive laziness
• Cognitive conceit
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Using and Misusing Heuristics
Two kinds of heuristics, representative heuristics and availability heuristics, have been identified by cognitive psychologists.
Amos Tversky Daniel Kahneman
Courtesy of G
reymeyer A
ward, U
niversity of L
ouisville and the Tversky fam
ily
Courtesy of G
reymeyer A
ward, U
niversity of L
ouisville and Daniel K
ahneman
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Probability that that person is a truck driver is far greater than an ivy league professor just because there are more truck drivers than
such professors.
Representativeness Heuristic
Judging the likelihood of things or objects in terms of how well they seem to represent, or
match, a particular prototype.
If you meet a slim, short, man who wears glasses and likes poetry, what do you think his profession would be?
An Ivy league professor or a truck driver?
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Availability Heuristic
Why does our availability heuristic lead us astray?Whatever increases the ease of retrieving
information increases its perceived availability.
How is retrieval facilitated?
How recently we have heard about the event.How distinct it is.How correct it is.
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Making Decision & Forming Judgments
Each day we make hundreds of judgments and decisions based on our intuition, seldom using systematic reasoning.
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Overconfidence
Intuitive heuristics, confirmation of beliefs, and the inclination to explain failures
increase our overconfidence. Overconfidence is a tendency to overestimate the accuracy of
our beliefs and judgments.
At a stock market, both the seller and the buyer may be
confident about their decisions on a stock.
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Exaggerated Fear
The opposite of having overconfidence
is having an exaggerated fear about what may
happen. Such fears may be unfounded.
The 9/11 attacks led to a decline in air travel due to fear.
AP
/ Wide W
orld Photos
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Framing Decisions
Decisions and judgments may be significantly affected depending upon how an issue is
framed.
Example: What is the best way to market ground beef — as 25% fat or 75% lean?
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Belief Bias
The tendency of one’s preexisting beliefs to distort logical reasoning
by making invalid conclusions.
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Belief Perseverance
Belief perseverance is the tendency to cling to our beliefs in the face of
contrary evidence.
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HEURISTIC ACTIVITY
• Anchoring heuristic/belief perservance
• Representativeness heuristic
• Availability heuristic
• Overconfidence
• Framing
• Belief bias
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Perils & Powers of Intuition
Intuition may be perilous if unchecked, but may also be extremely efficient and
adaptive.
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Perils & Powers of Intuition
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Language
Language, our spoken, written, or gestured work, is the way we communicate meaning
to ourselves and others.
Language transmits culture.
M. &
E. B
ernheim/ W
oodfin Cam
p & A
ssociates
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LANGUAGE
• Language does not determine thought, but it does influence it.
• Expanding language expands the ability to think. Bilingual advantages (attention, academic achievement, fluency, self-esteem)
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Language Structure
Phonemes: The smallest distinct sound unit in a spoken language. For example:
bat, has three phonemes b · a · t
chat, has three phonemes ch · a · t
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Language Structure
Morpheme: The smallest unit that carries a meaning. It may be a word or part of a word. For example:
Milk = milkPumpkin = pump . kin
Unforgettable = un · for · get · table
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Structuring Language
Phrase
Sentence
Meaningful units (290,500) … meat, pumpkin.Words
Smallest meaningful units (100,000) … un, for.
Morphemes
Basic sounds (about 40) … ea, sh.Phonemes
Composed of two or more words (326,000) … meat eater.
Composed of many words (infinite) … She opened the jewelry box.
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Grammar
Grammar is the system of rules in a language that enable us to communicate
with and understand others.
Grammar
SyntaxSemantics
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Semantics
Semantics is the set of rules by which we derive meaning from morphemes, words,
and sentences. For example:
Semantic rule tells us that adding –ed to the word laugh means that it happened in the past.
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Syntax
Syntax consists of the rules for combining words into grammatically sensible
sentences. For example:
In English, syntactical rule says that adjectives come before nouns; white house.
In Spanish, it is reversed; casa blanca.
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Language Development
Children learn their native languages
much before learning to add 2+2.
Tim
e Life Pictures/ G
etty Images
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When do we learn language?
Babbling Stage: Beginning at 4
months, the infant spontaneously utters various sounds, like ah-goo. Babbling is
not imitation of adult speech.
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When do we learn language?
One-Word Stage: Beginning at or around his first birthday, a child starts to speak one word at a time and is able to make family members understand him. The word doggy may mean look at the dog out there.
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When do we learn language?
Two-Word Stage: Before the 2nd year a child starts to speak in two-word sentences. This form of speech is called telegraphic speech because the child speaks like a telegram: “Go car,” means I would like to go for a ride in the car.
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When do we learn language?
Longer phrases: After telegraphic speech, children begin uttering longer phrases (Mommy get ball) with syntactical sense, and by early elementary school they are employing humor.
You never starve in the desert because of all the sand-which-is there.
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When do we learn language?
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Explaining Language Development
1. Operant Learning: Skinner (1957, 1985) believed that language development may be explained on the basis of learning principles such as association, imitation, and reinforcement.
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Explaining Language Development
2. Inborn Universal Grammar: Chomsky (1959, 1987) opposed Skinner’s ideas and suggested that the rate of language acquisition is so fast that it cannot be explained through learning principles, and thus most of it is inborn.
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Explaining Language Development
3. Statistical Learning and Critical Periods: Well before our first birthday, our brains are discerning word breaks by statistically analyzing which syllables in hap-py-ba-by go together. These statistical analyses are learned during critical periods of child development.
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Genes, Brain, & Language
Genes design the mechanisms for a language, and experience modifies the
brain.
Mic
hael
New
man
/ Pho
to E
dit,
Inc.
Eye
of
Sci
ence
/ Pho
to R
esea
rche
rs, I
nc.
Dav
id H
ume
Ken
nerl
y/ G
etty
Im
ages
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Language & Age
Learning new languages gets harder with age.
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Language & Thinking
Language and thinking intricately intertwine.
Rubber B
all/ Alm
ay
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Language Influences Thinking
Linguistic Determinism: Whorf (1956) suggested that language determines the way we think.
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Linguistic Determinism Questioned
Although people from Papua New Guinea do not use our words for colors and shapes, they
still perceive them as we do (Rosch, 1974).
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Images and Brain
Imagining a physical activity activates the same brain regions as when actually
performing the activity.
Jean Duffy D
ecety, Septem
ber 2003
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Do animals have a language?
Animals & Language
Honey bees communicate by dancing. The dancemoves clearly indicate the direction of the nectar.
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Do Animals Think?
Common cognitive skills in humans and apes
include the following:
1. Concept formation.2. Insight3. Problem Solving4. Culture5. Mind?
African grey parrot assorts redblocks from green balls.
William
Munoz
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Insight
Chimpanzees show insightful behavior when solving problems.
Sultan uses sticks to get food.
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Problem Solving
Apes are famous, much like us, for solving problems.
Chimpanzee fishing for ants.
Courtesy of Jennifer B
yrne, c/o Richard B
yrne, D
epartment of P
sychology, University of S
t. Andrew
s, Scotland
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Animal Culture
Animals display customs and culture that are learned and transmitted over generations.
Dolphins using sponges asforging tools.
Chimpanzee mother using andteaching a young how to use
a stone hammer.
Copyright A
manda K
Coakes
Michael N
ichols/ National G
eographic Society
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Mental States
Can animals infer mental states in themselves and others?
To some extent. Chimps and orangutans (and dolphins) used mirrors to inspect
themselves when a researcher put paint spots on their faces or bodies.
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Do Animals Exhibit Language?
There is no doubt that animals
communicate.
Vervet monkeys, whales and even
honey bees communicate with members of their species and other
species.Rico (collie) has a
200-word vocabulary
Copyright B
aus/ Kreslow
ski
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The Case of Apes
Chimps do not have a vocal apparatus for human-like speech (Hayes & Hayes,1951).
Therefore, Gardner and Gardner (1969) used American Sign Language (ASL) to train Washoe, a chimp, who learned 182
signs by the age of 32.
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Gestured Communication
Animals, like humans, exhibit communication through gestures. It is
possible that vocal speech developed from gestures during the course of evolution.
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Sign Language
American Sign Language (ASL) is instrumental in teaching chimpanzees
a form of communication.
When asked, this chimpanzee usesa sign to say it is a baby.
Paul Fusco/ Magnum
Photos
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Computer Assisted Language
Others have shown that bonobo pygmy chimpanzees can develop even greater
vocabularies and perhaps semantic nuances in learning a language (Savage-Rumbaugh, 1991). Kanzi and Panbanish developed vocabulary for
hundreds of words and phrases.
Copyright of G
reat Ape T
rust of Iowa
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Criticism
1. Apes acquire their limited vocabularies with a great deal of difficulty, unlike children who develop vocabularies at amazing rates.
2. Chimpanzees can make signs to receive a reward, just as a pigeon who pecks at the key receives a reward. However, pigeons have not learned a language.
3. Chimpanzees use signs meaningfully but lack syntax.
4. Presented with ambiguous information, people tend to see what they want to see.
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Conclusions
If we say that animals can use meaningful sequences of signs to communicate a
capability for language, our understanding would be naive… Steven Pinker (1995)
concludes, “chimps do not develop language.”
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iClicker Questions for
Chapter 10: Thinking and Language
Psychology, 8th Edition
by David G. Myers Karla Gingerich, Colorado State University
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While working on a word problem, Jenae has an “aha!” moment of sudden insight about how to solve the problem. If you were mapping her brain activity on an
EEG at that moment, you would expect to observe a burst of activity in her:
A. left frontal lobe.B. right frontal lobe.C. left temporal lobe.D. right temporal lobe.
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To find Tabasco sauce in a large grocery store, you could systematically search every shelf in every store aisle.
This best illustrates problem solving by means of:
A. the availability heuristic.
B. functional fixedness.
C. an algorithm.
D. the representativeness heuristic.
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Pablo vainly searches for a screwdriver while failing to recognize that a readily available coin in his pocket would turn
the screw. His oversight best illustrates:
A. functional fixedness.
B. the availability heuristic.
C. belief perseverance.
D. the representativeness heuristic.
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A defense attorney emphasizes to a jury that her client works full-time, supports his family, and enjoys leisure-time hobbies. Although none of
this information is relevant to the trial, it is designed to make the defendant appear to be a typical member of the local community. The
lawyer is most clearly attempting to take advantage of:
A. confirmation bias.B. functional fixedness.C. belief perseverance.D. the representativeness heuristic.
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Advertisers know that a thirty-three percent discount sounds like a better
deal than a discount of one third. This best illustrates:
A. framing.
B. belief bias.
C. representativeness heuristics.
D. confirmation bias.
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Maintaining one's conceptions even after the basis on which they were
formed has been discredited is known as:
A. the representativeness heuristic.
B. belief perseverance.
C. confirmation bias.
D. functional fixedness.
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In English, it is appropriate to refer to “a pretty bird,” but not to “a bird pretty.” This best illustrates the importance of:
A. syntax.
B. semantics.
C. morphemes.
D. phonemes.
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Using different words for two very similar objects enables people to recognize conceptual distinctions
between the objects. This illustrates:
A. telegraphic speech.
B. linguistic determinism.
C. functional fixedness.
D. the representativeness heuristic.
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Which language theorist would have been most likely to emphasize that
children master the rule for forming the past tense of regular verbs like "push" before they learn common past tense constructions of irregular verbs like
"go"? A. B. F. SkinnerB. Benjamin Lee WhorfC. Noam ChomskyD. Beatrix Gardner
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Which of the following is TRUE?A. People underestimate the accuracy of their
judgments.
B. People pay closest attention to information that disconfirms what they believe.
C. It is difficult for most people to explain away their failures.
D. People are overconfident about how they will perform on various tasks.
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Critical Thinking Questions
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Problem solving is one type of cognitive activity in which we all engage. Which of the following
cognitive tendencies is seen to be an obstacle to problem solving?
A. availability heuristicB. insightC. prototype confusionD. confirmation bias
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A typical one-year-old child:
A. uses telegraphic speech.
B. imitates two-word phases.
C. is in the cooing stage.
D. has lost the ability to discriminate phoneme sounds outside her native language.
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Noam Chomsky’s theory of language acquisition holds that people have an inborn universal grammar that makes learning of language easy for children. Which of the
following statements is used as support for this theory?
A. Children repeat words that they hear frequently.B. Regardless of the language learned, children tend to make
similar errors of grammar when they first begin to learn language.
C. Chimpanzees and other apes can easily learn language.D. Some children’s vocabularies are extensive, despite the fact
that they may live in poor environments.
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Which of these findings have been cited as evidence supporting the
viewpoint that animals have capacity for language?
A. Washoe, a language trained chimp has been observed trying to teach other chimps to use language without trainer intervention.
B. Chimpanzees’ and other apes’ use of language is seemingly unlimited.
C. Chimps simply imitate the gestures of the trainers.
D. Language behaviors are strongly reinforced by the trainers.