Cognition : the mental activities associated with thinking, knowing, and remembering.
Cognitive Psychologists
Concept formation
Problem solving
Decision making
Judgment formation
Concepts
A mental grouping of similar objects, events, ideas, or people.
Analogous to hierarchies and schemas.
Prototype : The best example, as defined by the individual.
Concepts and Categories
Classical Categories
Aka Aristotelian, all-or-none, rule-governed
Grandmother = mother of a parent
Even number = integer exactly divisible by 2
Family Resemblance Categories
Solves for an unknown
Is an SUV a car or a truck?
Is garlic a fruit or a vegetable?
Did Bill and Monica have sex?
Problem Solving
Three categories of problem solving:
Algorithm
Heuristics
Insight
Algorithm
Methodical, logical rule or procedure that guarantees solution.
Slow, but guaranteed results.
Cracking a safe: 0-0-0, 0-0-1, 0-0-2, …
List every word in the English language that begins with the letter “Q”
Heuristic
Rule-of-thumb strategy that allows for judgment and guesses.
Faster, but more error prone.
List all the words in the English language that starts with the letter “Q” – you know the second letter is a “U” and the third letter is also a vowel.
Insight
A sudden and often novel realization of the solution to a problem.
Not a strategy-based solution!
Wolfgang Kohler’s experiments (1925) on chimpanzee insight.
Sultan the chimpanzee.
Obstacles to Problem Solving
Confirmation Bias
Assuming that each card has a triangle on one side and a circle on the other, which card(s) need to be turned over to test this statement:
“ Every card that has a black triangle on one side has a red circle on the other.”
Fixation
Mental Set
Functional Fixedness
Decisions and Judgments
Misusing Heuristics
The Representativeness Heuristic
The Availability Heuristic
Overconfidence
Stocks – can only buy when someone sells
Framing Decisions
Condoms are 98% effective …
Doublespeak.
Belief Bias
Beliefs are often stronger than logic.
Belief Perseverance
Artificial Intelligence
The science of designing and programming computer systems to do intelligent things and to simulate human thought processes such as intuitive reasoning, learning, and understanding language.
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