Thinking and Reasoning The Elements of Cognition Think about what thinking does for you… Concept...

Thinking and Reasoning

QuickTime™ and aGIF decompressor

are needed to see this picture.

The Elements of CognitionThe Elements of Cognition

• Think about what thinking does for you…ConceptConcept - a mental category that groups

objects, relations, activities, abstractions, or qualities having common properties.

BasicBasic conceptsconcepts have a moderate number of instances thus making them easier to grasp than those with numerous instances.

The Elements of CognitionThe Elements of Cognition

• PrototypePrototype - is a representative example of a concept.

• PropositionsPropositions - units of meaning that are made up of concepts and that express a single idea.

How do we use concepts

• Concepts cannot simply be layered one on another. We must see their relationship to one another.

• Propositions - one way of storing and using concepts. They express a unitary idea based on the concept. They are connected through complicated networks of knowledge, association, belief and expectations.

Cognitive Schemas

• Gender schemas represent beliefs and expectations about what it means to be male or female.

• Cultural schemas represent beliefs and expectations about what it means to be part of a particular group.

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.QuickTime™ and aTIFF (Uncompressed) decompressor




Mental Images

Small ones contains less detail than larger ones.

Mental Images

• Visual Images - What Shakespeare called ‘the minds eye’

• How do we measure it? One way is to see how long it takes a subject to mentally rotate an image.

They occur in a mental “space” of a fixed size.

Sound can be an image too.

Reasoning and CreativityReasoning and Creativity

• Reasoning - that powerful mental process that Reasoning - that powerful mental process that involves operating on information and coming to involves operating on information and coming to conclusions.conclusions.

• Formal ReasoningFormal Reasoning - algorithm– Deductive reasoningDeductive reasoning - a form of reasoning in which a

conclusion follows necessarily form a set of premises. If the premises are true the conclusion must be true.

– Inductive reasoningInductive reasoning - A form of reasoning in which the premises provide support for a conclusion, but it could still be false.

• Informal ReasoningInformal Reasoning– Algorithms and logical reasoning cannot solve

every kind of problem.– In some cases a variety of approaches,

viewpoints and possible solutions may present themselves.

– In some cases the information may be incomplete, conflicting or contradictory.

Reasoning and CreativityReasoning and Creativity

Utilizes heuristicsUtilizes heuristicsUtilizes heuristicsUtilizes heuristicsUtilizes heuristicsUtilizes heuristics

Dialectical ReasoningDialectical Reasoning

• Dialectical reasoning is a process in which opposing facts or ideas are weighed and compared with the goal of determining the best solution or to resolving differences.

““up and back between contradictory lines of up and back between contradictory lines of reasoning, using each to critically cross-reasoning, using each to critically cross-examine the other.”examine the other.” Richard Paul (1984) PhilosopherRichard Paul (1984) Philosopher.

Creative ThinkingCreative Thinking

You must use no more than 4 lines to connect all the dots without removing your pencil from the paper.

Copy the diagram on a piece of paper.

Jean PiagetJean Piaget

Stages of Intellectual DevelopmentStages of Intellectual Development

Key Terms in Piaget’s TheoryKey Terms in Piaget’s Theory

• Assimilation - what you do when you fit new information into your present knowledge and beliefs (schemas)





Key Terms in Piaget’s Theory

• Accommodation - what you do when, as a result of undeniable new information, you must change or modify your existing schemas.



Stages of Development

• Discussion Piaget's theory identifies four developmental stages and the processes by which children progress through them. The four stages are:

• 1. Sensorimotor stage (birth - 2 years old)--The child, through physical interaction with his or her environment, builds a set of concepts about reality and how it works. This is the stage where a child does not know that physical objects remain in existence even when out of sight (object permanence).

Stages of Development

• 2. Preoperational stage (ages 2-7)--The child is not yet able to conceptualize abstractly and needs concrete physical situations.

• 3. Concrete operations (ages 7-11)--As physical experience accumulates, the child starts to conceptualize, creating logical structures that explain his or her physical experiences. Abstract problem solving is also possible at this stage. For example, arithmetic equations can be solved with numbers, not just with objects.

Piaget’s Stages

• 4. Formal operations (beginning at ages 11-15)--By this point, the child's cognitive structures are like those of an adult and include conceptual reasoning.

Stages in Table Form

Beyond Piaget: How Adults ThinkBeyond Piaget: How Adults Think

1. Where do you stand on the issue of genetic engineering?

2. How safe do you consider food additives?

3. Is the news media objective?

4. What causes terrorism?

How do adults respond to these questions?

• Reflective judgment - often called critical thinking - the ability to question assumptions, evaluate evidence, relate that evidence to a theory or opinion, consider alternative interpretations, and reach conclusions that can be defended reasonably or plausibly while being ready to reassess those conclusions based on new evidence.

Research

• King and Kitchener studies these questions and found the following:– There are seven cognitive stages on the way to

reflective thought.– At each stage different assumptions about how

things are known and use different ways of justifying their beliefs.

– Each stage builds on the skills of the prior stage.

Barriers to Reasoning

“Although most people have the capacity to think logically, reason dialectically, and make judgments reflectively, it is abundantly clear that they don’t always do so”

Think logically? What’s that?Reason

dialectically?

Make judgments reflectively?

Various Biases

• The Hindsight Bias - aka the “knew it all along” bias - with the information based on hindsight they see the outcome as inevitable and over estimate the probability they could have predicted the outcome.

• Potential example of the hindsight bias is the predictability of September 11, 2001.

Various Biases• Avoidance of Loss - we all try to avoid or

minimize the risk in making decisions.

1. Make a choice: There is a disease that is likely to kill 600 people. Would you prefer a program that will definitely save 200 people or one that has a 1/3 probability of saving all 600 and a 2/3 chance of saving none?

1. Make a choice: You have available a program in which 400 people will definitely die and a program in which there is a 1/3 probability of nobody dying and a 2/3’s probability that all 600 will die. Which to you choose?

Various Biases• Exaggerating the Improbable - the

inclination to exaggerate the probability of very rare events.



This explains why so many people buy lottery tickets or buy insurance before a flight.



The Availability Heuristic - the tendency to judge the probability of an event by how easy it is to think of examples or instances.

Biases Continues

• Confirmation Bias - the tendency to notice and accept evidence that confirms what we already believe and ignore or reject information that disconfirms our ideas.

If a card has a vowel on one side, then it has an even number on the other side. Which two cards do you need to turn over to find out?

Cognitive Consistency

• Confirmation bias can be helpful in that we don’t need to continually change our minds.

• The downside is it can create cognitive dissonance

Motivating Conditions to Reduce Dissonance

1. When you need to justify a choice or decision that you freely made. (buyers remorse)

2. When your actions violate your self-concept. (self should be consistent across situations)

3. When you put a lot of effort into a decision, only to find the results less than you hoped for. (leads to justification of effort)

Thinking and Reasoning The Elements of Cognition Think about what thinking does for you… Concept...

Documents

Transcript of Thinking and Reasoning The Elements of Cognition Think about what thinking does for you… Concept...