Memory Part 2 Unit 7 Flashcards
Concepts
- Mental grouping of similar objects, events, ideas, or people
- Way our mind understands things that have stuff in common, come up with a category for them
- Ex: Chairs–> types of chairs
Concept Formation
- Definition
2. Prototype
Definition
- Defining something
- Ex: Triangle–> has 3 sides, geometric shape
Prototype
- Mental image or best example of a category
- Matching new items to a prototype provides a quick and easy method for sorting items into categories
- Ex: typical idea of a bird= robin
Problem Solving Strategies
- Trial and Error
- Algorithms
- Heuristics
- Insight
Trial and Error
- Try out a few things and see what works
- ex: keys–> which one opens the lock (try the keys)
Algorithms
- Methodical, logical rule or procedure that guarantees solving a particular problem
- Ex: equations, recipes
Heuristics
- Simple thinking strategy that often allows use to make judgements and solve problems efficiency
- Rule of thumb–> doesn’t always work
- Ex: want to know how many students go to Feehan, count how many people enter during the day
Compare and Contrast of Trial and Error, Algorithms, and Heuristics
- Trial and error useful when only a few options
- Heuristics are speedier, yet more prone to error than algorithms
- Ex: searching entire house for keys or only the places they would most likely be
Insight
- Sudden, and often novel, realization of the solution to a problem
- Cannot be employed
Wolfgang Kohler
- Ex of insight
- Sultan could not get the banana with the short stick in the cage, but realized he could use the stick to get the longer stick, which could reach the banana
- Shows that animals have insight
Obstacles to Problem Solving
- Confirmation Bias
- Mental Set
- Fixation
- Functional Fixedness
How do we make decisions and form judgements?
- Representative Heuristic
- Availability Heuristic
- Overconfidence
- Belief Perseverance Phenomenon
- Framing
Confirmation Bias
- A tendency to search for information that supports our preconceptions and ignore or distort contradictory evidence
- Tend to look for things that confirm our beliefs
- EX: Girl thinks boy is cute and nice, only sees him doing good, not bad
- Applied to problem solving: we have difficulty finding right answers when we look for evidence supporting an opinion
Fixation
-The inability to see a problem from a new perspective, by employing a different mental set
Mental Set
- Tendency to approach a problem in one particular way, often a way that has been successful in the past
- Ex: pushing a door when u are used to pushing, but it is a pull door
Functional Fixedness
- The tendency to think of things only in terms of their usual function
- Impediment to problem solving
Amos Tversky and Daniel Kahneman
- Studied our nack for using heuristics
- Won a Nobel Prize
Representativeness Heuristic
- Judging the likelihood of things in terms of how well they seem to represent, or match, particular prototypes
- May lead us to ignore other relevant information
- Ex: soft spoken, short man who likes poetry–> professor or truck driver
- We think professor but it is more likely that it is a truck driver
- Tend to make a lot of mistakes when we judge anything based on this
Availability Heuristic
- Estimating the likely hood 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
- Ex: more people are afraid of riding in planes that cars because more horrific plane crashes come to mind
Overconfidence
- The tendency to be more confident than correct
- To over-estimate the accuracy of our beliefs and judgements
- Reason why we can believe very strongly in somethings and be wrong
- Ex: spelling tasks–> spell new words and rate confidence
- Correct 80% of time, but 100% confident in answers (20% overconfidence)
Belief Perseverance Phenomenon
- Clinging to one’s initial conceptions after the basis on which they were formed has been discredited
- When we believe in something, difficult to change
- Ex: people who were for or against death penalty read articles on how death Pentax does and does not defer crime
- Are not swayed, but instead beliefs become stronger
Framing
- The way an issue is posed
- Can significantly affect decisions and judgements
- Ex: medical procedure
- 80% chance of life vs 20% chance of death
- 80% makes them more likely to do the procedure than death
Creativity
-The ability to produce novel and valuable ideas