Myers’ PSYCHOLOGY
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Transcript of Myers’ PSYCHOLOGY
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Myers’ PSYCHOLOGY
Chapter 10Thinking and Language
James A. McCubbin, PhDClemson University
Worth Publishers
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ThinkingCognition
mental activity associated with processing, understanding, and communicating information
Cognitive Psychology the study of these mental activities
concept formationproblem solvingdecision makingjudgement formation
study of both logical and illogical thinking
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ThinkingConcept
mental grouping of similar objects, events, or peopleaddress
• country, city, street, house• zip codes
Prototype the best example of a category
matching new items to the prototype provides a quick and easy method for including items in a category (as when comparing feathered creatures to a prototypical bird, such as a robin.)
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ThinkingAlgorithm
methodical, logical rule or procedure that guarantees solving a particular problem
contrasts with the usually speedier – but also more error-prone use of heuristics
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ThinkingHeuristic
rule-of-thumb strategy that often allows us to make judgements and solve problems efficiently
usually speedier than algorithms more error-prone than algorithms sometimes we’re unaware of using
heuristics
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ThinkingUnscramble
S P L O Y O C H Y GAlgorithm
all 907,208 combinationsHeuristic
throw out all YY combinations other heuristics?
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ThinkingInsight
sudden and often novel realization of the solution to a problem
contrasts with strategy-based solutionsConfirmation Bias
tendency to search for information that confirms one’s preconceptions
Fixation inability to see a problem from a new perspective impediment to problem solving
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Thinking- InsightWolfgang Kohler’s experiment on insight
by a chimpanzee
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The Matchstick ProblemHow would you
arrange six matches to form four equilateral triangles?
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The Three-Jugs Problem Using jugs A, B, and C with the capacities
shown, how would you measure out the volumes indicated?
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The Three-Jugs Problem
Problem A B CGiven jugs of these sizes: Measure out
this much water:
1
2
3
4
5
6
7
21 127 3
14 46 5
18 43 10
7 42 6
20 57 4
23 49 3
15 39 3
100
22
5
23
29
20
18
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The Candle-Mounting Problem
Using these materials, how would you mount the candle on a bulletin board?
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ThinkingMental Set
tendency to approach a problem in a particular way
especially a way that has been successful in the past but may or may not be helpful in solving a new problem
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ThinkingFunctional Fixedness
tendency to think of things only in terms of their usual functions
impediment to problem solving
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The Matchstick Problem
Solution to the matchstick problem
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The Three-Jugs Problem Solution:
a) All seven problems can be solved by the equation shown in (a): B-A-2C= desired volume.
b) But simpler solutions exist for problems 6 and 7, such as A-C for problem 6.
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The Candle-Mounting Problem
Solving this problem requires recognizing that a box need not always serve as a container
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HeuristicsRepresentativeness Heuristic
rule of thumb for judging the likelihood of things in terms of how well they seem to represent, or match, particular prototypes
may lead one to ignore other relevant information
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HeuristicsAvailability Heuristic
estimating the likelihood of events based on their availability in memory
if instances come readily to mind (perhaps because of their vividness), we presume such events are common
Example: airplane crash
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ThinkingOverconfidence
tendency to be more confident than correct
tendency to overestimate the accuracy of one’s beliefs and judgements
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ThinkingFraming
the way an issue is posed how an issue is framed can
significantly affect decisions and judgements
Example: What is the best way to market ground beef- As 25% fat or 75% lean?
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ThinkingBelief Bias
the tendency for one’s preexisting beliefs to distort logical reasoning
sometimes by making invalid conclusions seem valid, or valid conclusions seem invalid
Belief Perseverance clinging to one’s initial conceptions after the
basis on which they were formed has been discredited
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Artificial IntelligenceArtificial Intelligence
designing and programming computer systemsto do intelligent things to simulate human thought processes
• intuitive reasoning• learning• understanding language
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Artificial IntelligenceArtificial Intelligence
includes practical applicationschess playingindustrial robotsexpert systems
efforts to model human thinking inspired by our current understanding of how the brain works
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Artificial Intelligence
Computer Neural Networks computer circuits that mimic the
brain’s interconnected neural cells
performing taskslearning to recognize visual patternslearning to recognize smells
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LanguageLanguage
our spoken, written, or gestured works and the way we combine them to communicate meaning
Phoneme in a spoken language, the
smallest distinctive sound unit
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LanguageMorpheme
in a language, the smallest unit that carries meaning
may be a word or a part of a word (such as a prefix)
Grammar a system of rules in a language that
enables us to communicate with and understand others
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LanguageSemantics
the set of rules by which we derive meaning from morphemes, words, and sentences in a given language
also, the study of meaningSyntax
the rules for combining words into grammatically sensible sentences in a given language
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Language We are all born to recognize speech sounds from all
the world’s languages100908070605040302010
0
Percentage ableto discriminateHindi t’s
Hindi-speaking
adults
6-8 months
8-10months
10-12months
English-speaking
adultsInfants from English-speaking homes
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LanguageBabbling Stage
beginning at 3 to 4 months the stage of speech development in which the
infant spontaneously utters various sounds at first unrelated to the household language
One-Word Stage from about age 1 to 2 the stage in speech development during
which a child speaks mostly in single words
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LanguageTwo-Word Stage
beginning about age 2 the stage in speech development during
which a child speaks mostly two-word statements
Telegraphic Speech early speech stage in which the child speaks
like a telegram – “go car” – using mostly nouns and verbs and omitting “auxiliary” words
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LanguageSummary of Language Development
Month(approximate)
Stage
410
12
24
24+
Babbles many speech sounds.
Babbling reveals households language.
One-word stage.
Two-world, telegraphic speech.
Language develops rapidly intoComplete sentences.
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LanguageGenes design the mechanisms
for a language, and experience fills them as it modifies the brain
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Language
Genes
Environmentspoken language
heard
BrainMechanisms for
understanding andproducing language
BehaviorMastery of
native language
provides input to
design
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LanguageNew
language learning gets harder with age
100
90
80
70
60
50 Native 3-7 8-10 11-15 17-39
Percentage correct ongrammar test
Age at school
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Language
Linguistic Relativity Whorf's hypothesis that language determines the way we think
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LanguageThe straight-
line part of the dance points in the direction of a nectar source, relative to the sun
Direction ofnectar source