Thinking Flashcards
What is a problem?
A problem arises when a living organism has a goal but does not know hot this goal is to be reached
A problems 3 elements:
Starting state
Goal state
A set of processes (operators) that transform one state into another
Two approaches to problem solving:
Behaviourist
Gestalt
Behaviourist approach:
Study of behaviour as objective and observable
Simple stimulus response association
Trial and error
Gestalt approach:
Problem solving is more than reproduction of learned response
Occurs through a process of restructuring and Insight
Darwin argued:
Humans and animal minds similar
Thorndike was concerned with:
Problem solving and high cognitive functions in animals
Thorndike Study
Cats in a box Time it took for cat to problem solve Trial and error chance behaviour Reward learned Incremental rather than Insightful
Kohler: The Gestalt approach
Chimps problem solving
Complex minds
Sultan 2 pokes together to reach fruit
Insightful rather than incremental trial and error
Why the difference between Thorndike and Kohler?
Cats hungry and distressed
Chimps well fed and cared for
Primates closer to humans in genetic structure social structure and cognitive abilities
Wallas 4 stages of creative thinking:
Preparation
Incubation
Illumination
Verification
Preparation:
Problem formulated and initial attempts made to solve problem
Incubation:
Problem set aside and no conscious work done on it
Illumination:
Sudden inspiration new insight to how problem solved
Verification:
Conscious work on problem develops and tests inspiration to provide full solution to problem
Silveira: cheap necklace problem
Control group: necklace half an hour 55% solved
Exp group 1: necklace half hour with break 74% solved
Exp 2: 4 breaks 85% solved
Evidence that incubation works:
Silveira: cheap necklace problem
Murray and Denny
Murray and Denny Study:
Subjects divided into high and low ability groups use of objects test of creativity
20minutes to solve complex practical problem
Half subjects had break
Lower ability aided by distractor task
Higher ability distraction did not help
Incubation useful for problems that are found hard
Barriers to success:
Functional fixedness
Mental set
Functional fixedness:
People fixate on a property of the problem, cannot think about it in a different way
Mental set:
Learn particular way of solving problem which often produces success but continue to use it even when inappropriate
Functional fixedness studies:
Dunker
Box on wall
Participants fixated on box’s normal function
Luchins water jug problem
Einstellung effect:
Mechanisation of thought
Overcoming fixedness:
The nine dot problem