Myers

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Myers PSYCHOLOGY (7th Ed)

• Chapter 10
• Thinking and Language
• James A. McCubbin, PhD
• Clemson University
• Worth Publishers

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Fact vs. Falsehood

• 1. We notice evidence that contradicts our
  beliefs more readily than evidence that is
  consistent with them.
• 2. In general, people underestimate how much
  they really know.
• 3. It takes less compelling evidence to change
  our beliefs than it did to create them in the
  first place.
• 4. Some computers are able to learn from
  experience.
• 5. The babbling of an infant at 3 months of age
  makes it clear whether the infant is French,
  Korean, or Ethiopian.
• 6. If not exposed to a language, a group of
  children will make up their own.
• 7. People who lack our words for shapes and
  colors also seem to perceive these features very
  differently.
• 8. Only human beings seem capable of insight
  (the sudden realization of a problems solution).
• 9. Bees use an intricate dance to communicate
  the direction and distance of a new food source
  to other bees.
• 10. Apes are capable of communicating meaning by
  using symbols.

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Thinking

• Cognitive Psychologists
• study these mental activities
• concept formation
• problem solving
• decision making
• judgment formation
• Cognition
• mental activities associated with thinking,
  knowing, remembering, and communicating

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Thinking

• Concept
• mental grouping of similar objects, events,
  ideas, or people
• Prototype
• mental image or 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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Thinking Problem Solving

• Algorithm
• methodical, logical rule or procedure that
  guarantees solving a particular problem
• contrasts with the usually speedierbut also more
  error-prone--use of heuristics

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Thinking Problem Solving

• Heuristic
• simple thinking strategy that often allows us to
  make judgments and solve problems efficiently
• usually speedier than algorithms
• more error-prone than algorithms

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Thinking Problem Solving

• Unscramble
• S P L O Y O C H Y G
• Algorithm
• all 907,208 combinations
• Heuristic
• throw out all YY combinations
• other heuristics?

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Thinking Problem Solving

• Insight
• sudden and often novel realization of the
  solution to a problem
• contrasts with strategy-based solutions
• Confirmation Bias
• tendency to search for information that confirms
  ones preconceptions
• Fixation
• inability to see a problem from a new perspective
• impediment to problem solving

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The Matchstick Problem

• How 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 Candle-Mounting Problem

• Using these materials, how would you mount the
  candle on a bulletin board?

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Thinking Problems

• Mental 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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Thinking Problems

• Functional Fixedness
• tendency to think of things only in terms of
  their usual functions
• impediment to problem solving

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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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Heuristics

• Representativeness Heuristic
• 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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Heuristics

• Availability 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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Thinking

• Overconfidence
• tendency to be more confident than correct
• tendency to overestimate the accuracy of ones
  beliefs and judgments

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Thinking

• Framing
• the way an issue is posed
• how an issue is framed can significantly affect
  decisions and judgments
• Example What is the best way to market ground
  beef--as 25 fat or 75 lean?

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Thinking

• Belief Bias
• the tendency for ones preexisting beliefs to
  distort logical reasoning
• sometimes by making invalid conclusions seem
  valid or valid conclusions seem invalid
• Belief Perseverance
• clinging to ones initial conceptions after the
  basis on which they were formed has been
  discredited

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Artificial Intelligence

• Artificial Intelligence
• designing and programming computer systems
• to do intelligent things
• to simulate human thought processes
• intuitive reasoning
• learning
• understanding language

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Artificial Intelligence

• Computer Neural Networks
• computer circuits that mimic the brains
  interconnected neural cells
• performing tasks
• learning to recognize visual patterns
• learning to recognize smells

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Artificial Intelligence

• What they cant do as well as a human
• True multi-tasking
• Recognition
• Inference
• Common sense
• emotions