Chapter 8- Thinking and Decision Making Flashcards
Cognition
“to know”
Mental processes involved in acquiring, processing, and storing knowledge
Cognitive Psychology
The science of how people think, learn, remember, and perceive
Mental Representations
A structure in our mind- such as an idea or image- that stands for something else, such as the external object or thing
Not present
Many types
Allows us to:
Think about and remember things in the past
Imagine things in the future
Think about abstract ideas, like love, truth justice
The Visual System
Located mostly in the occipital lobes
Older than the verbal system
Develops before verbal ability
We see before we talk
Visual Imagery
Visual representations created by the brain after the original stimulus is no longer present
Brain during visual imagery is activated in same way as it is during visual perception
Therefore, difficult to distinguish between a brain perceiving something and a brain imagining seeing the same thing
Crucial for some cognitive tasks involved in interpreting spatial relationships
Imagining Outcomes
Imagining outcomes makes them more likely to happen
If you form a mental image of an ideal performance, you are more likely to perform that activity better
Performance is improved because the brain is primed by images of the success, the pathways are activated in advanced
The brain is activated in the same way while imagining a task as it is while performing a task
Mental Rotation
The process of imagining an objet rotating in 3D space
Takes 2.5 seconds to determine if same or different
Have to conjure mental picture and manipulate the image to make a judgement about its spatial properties
Boys and men do better than girls and women
May not only be gender directly that leads to differences in spatial ability, but how you identify. People who self-identify as “masculine” have higher spatial ability scores than those who identify as “feminine”
Cause of the Gender Difference in Spatial Ability
Levels of male sex hormone, testosterone
Female rats with injected testosterone during development performed better on spatial tasks, maze running
Relationships in humans among testosterone, gender, and spatial ability is complex and not linear
In humans, females with high levels and males with low levels of testosterone perform better on spatial tasks
Major Function of Thought
To organize and classify our perceptions into categories
Humans organize their environment by naming things and giving them labels
Concept
The basic unit of knowledge
A mental grouping of objects, events, or people
Help organize perceptions of the world
We can store and process concepts in two ways
in a hierarchy and by parallel distributed processing
Concept Hierarchy
An arrangement of related concepts in a particular way
Some being general, others specific
Helps order and understand the world
Example: A dog, Goldie, is a “Golden Retriever,” which is a “dog”, which is an “animal”, which is a “living thing”
2) Parallel Distributive Processing (PDP)
Associations between concepts activate many networks or nodes at the same time
Concepts are activated in the network based on how strongly associated or connected they are to each other
Arranged by similarity
Location of a concept is based on its relation to other concepts
Example: Animals such as bird and fish are closer to each other and farther away from plants such as trees and flowers
Category
A concept that organizes other concepts around what they all share in common
Example: All things that move and eat are “animals”. All things that grow out of the Earth and do not eat are “plants”
Can either be concrete or abstract
Concrete categories:
triangles, cars
Abstract categories
good, consciousness
Prototypes
The best fitting examples of a category
Ex: Robin is a better prototype for the category “bird” than ostrich
Reasoning
The process of drawing inferences or conclusions from principles and evidence
Anytime we use the word “because”
Sometimes allows to draw sound, correct conclusions but not always the case
Cognitive psychologists distinguish between two kinds of reasoning drawn from formal logic
Deductive and Inductive