Week 11- Thought and Language Flashcards
What is linguistic relativity hypothesis?
- Thoughts are shaped by language
- The language you speak limits your thoughts
- Not entirely true
Define thought
- Thought is an extension of perception and memory
- We form mental representations
- We recall mental representations using memory
Define thinking
Thinking is manipulating mental representations (images or words) for a purpose
What is the role of the dorsolateral prefrontal cortex in thinking?
Central role in working memory and explicit manipulation of representations through our conscious thought
What is the role of the ventromedial prefrontal cortex in thinking?
Role in the use of emotional reactions to guide decision making and behaviour
Define mental models, giving examples
- Mental models involve a representation that describes, explains or predicts how things work
- Examples include:
-Our understanding of how cars work
-Our model of a neuron
-Our model of memory systems (STM, LTM)
Define concept, giving an example
- A mental representation of a category
-‘Cat’: a small, furry, four-legged, independent animal - Objects are classified on the basis of their properties
Define categories and categorisation
- Categories: groupings based on common properties
- Categorisation: how we assign an object to a concept
Outline the process of categorisation
- Categorisation involves recognising an object as a member of a category
- We categorise objects by:
-Comparison with a list of defining features (qualities that are essential for membership of the category)
-Similarity/dissimilarity to prototypes (an abstraction across many instances of a category)
Define prototypes
- The amount of time it might take us to recognise that a bird is a bird (for example) will take longer if it differs too much from our prototype
- A prototype is an idea we have or an abstraction that’s been formed using the shared features or functions of an object across many instances
Outline how concepts can represent information, using a laptop as an example
- Shape
- Defining features- electronic device, has a particular architecture or operating design, uses digital processor to perform computations
- Characteristic features- has a keyboard, has a screen, can be used for word processing and web browsing, can store information on hard drive or USB device
- Exemplars- Apple iMac, IBM platinum
Outline how concepts are hierarchical
- Many concepts are hierarchically ordered, with sub concepts of varying levels of abstraction
- Efficient thinking requires choosing the right level of abstraction
Outline the (3) levels of categorisation
- Basic- broadest, most inclusive, ‘natural’ level, quickest response e.g. bird
- Subordinate- more specific than basic e.g. magpie
- Superordinate- more abstract than basic, members share few specific features, level of metaphor
Define reasoning
The process by which people generate and evaluate arguments and beliefs
Define inductive reasoning
- Reasoning from specific observations to general propositions
- Relies heavily on probabilities
Define deductive reasoning giving an example
- Drawing a conclusion from a set of assumptions or premises (e.g. syllogisms)
- The conclusion drawn is true if the premise is true and the reasoning logical
- Specific premises are given, for example: the dog always barks when there is someone at the door, and the dog barked
- Does the premise allow a particular conclusion to be drawn: so there is someone at the door
Define syllogism, giving an example
- A form of reasoning in which a conclusion is drawn from two given or assumed propositions
-Premise 1: all 30 year old women are blonde
-Premise 2: Holly is a 30 year old woman
-Conclusion: Holly is blonde
-The reasoning is correct, are the premises logical?
Define belief bias, giving an example
- Conclusions that concur with real world knowledge are judged to be valid
-If my finger is cut, then it bleeds
-My finger has blood on it
-Therefore my finger is cut - The logical premises here are overlooked
- Relying on real world knowledge is less effortful than formal reasoning
Outline the process of inductive reasoning, giving an example
- A conclusion is made about the probability of some state of affairs based on the available evidence and past experiences
-Menou is a cat
-Menou likes to take showers
-Therefore all cats like to take showers - Generalising from specific instance to an entire category
- Everyday thinking often involves inductive processes
Define and outline the process of analogical reasoning
- Analogical reasoning is the process by which people understand a novel situation in terms of a familiar one
- The novel and familiar situations must each contain a number of elements that can be mapped onto each other
- We use analogies to categorise novel situations, make inferences and solve problems
Define relational similarity, giving an example
- In many analogies, the objects in the analogy are not actually similar at all, their similarity is purely at a relational level
- E.g. analogy of a snake biting its own tail and circular molecular structure of Benzene (carbon atoms arranged circularly)
Define surface similarity, giving an example
- Frequently, the objects in the analogy bear some resemblance to one another, called surface similarity
- Similarity of appearance can support analogical mapping
- E.g. velcro, following an observation of burdock burs stuck to dog fur. Surface similarity of hairs coating the burdock furs and the furs on velcro support surface similarity of an effective sticking mechanism
Outline analogical reasoning
- Both relational and surface similarity affect analogical reasoning
- An analogy is mapping from one structure referred to as the base/source to another, referred to as the target in order to problem solve
- Taking something we already know and are familiar with and applying that to a novel situation or problem, to work through and problem solve
What are the benefits of analogous thinking?
- We can use analogous reasoning to make conclusions about things we have not actually seen or experienced first hand
-Called transitive inference
Tom is happier than Bill. Bill is happier than Mike. Who is happiest?
Define problem solving and outline the process
- Problem solving refers to the process by which we transform one situation into another to meet a goal
Initial state (a problem) > Operators (actions performed to solve the problem) > Goal state (no problem)