Unit 2 Flashcards
Cognition
All the mental activities associated with thinking, knowing, remembering, and communicating
metacognition
Keeping track of and evaluating our mental processes
concepts
mental grouping of similar objects, events, ideas, or people
prototype
Mental image or best example of a category
How are prototypes useful?
They make sorting items into categories easier as matching the new item to a prototype is quick and easy
schemas
Concept or framework that organizes and interprets information
Assimilation
Interpreting new experiences in terms of our existing schemas
Accommodate
Adapting current schemas to incorporate new information
creativity
Ability to produce novel and valuable ideas
Convergent thinking
Narrowing the available problem solutions to determine the single best solution
divergent thinking
expanding the number of possible problem solutions, creative thinking that diverges in different directions
What are the 5 components of creativity
Expertise
imaginative thinking skills
venturesome personality
intrinsic motivation
creative environment
Selective attention
Focusing conscious awareness on a particular stimulus
Cocktail party effect
Ability to attend to only 1 voice within a sea of many others as you chat with a party guest
Inattentional blindness
Failing to see visible objects when our attention is directed elsewhere
Change blindness
Failing to notice changes in the environment, a form of inattentional blindness
perceptual set
Mental predisposition to perceive one thing and not another
What can expectations give us and what does it effect?
It may give us a perceptual set that would effect top-down and our senses
What are formed through experiences?
Concepts/schemas that organize and interpret unfamiliar information
What can effect interpretations?
Immediate context, motivations, and emotions
gesalt
an organized whole, emphasizes the tendency to integrate pieces into meaningful wholes
figure-ground
the organization of the visual field into objects that stand out from their surroundings
What are some basic features of a scene that are processed instantly and automatically?
color, movement, light-dark contrast
how does the mind bring order and form to other stimuli?
by grouping
grouping
tendency to organize stimuli into coherent groups
depth perception
ability to see objects in 3 dimensions although the images that strike the retina are 3 dimensional, also allows us to judge distance
Binocular cues
A depth cue that depends on the use of 2 eyes
convergence
A cue to nearby object’s distance enabled by the brain combining retinal images
retinal disparity
Binocular cue for perceiving depth. Compares the different retinal images from the 2 eyes, where it computers distance from disparity
if an object is close to the eyes, is the disparity greater or smaller?
greater
if an object is far from the eyes, is the disparity greater or smaller?
smaller
Monocular cues
Dept cue that is available to either eye alone
Relative clarity
Objects that are further away appear hazy or blurry. Closer objects are sharper and clearer
Relative size
2 objects of relative size, the one that seems smaller are farther away
texture gradient
Further away objects are smoother, closer objects have more texture
linear perspective
Parallel lines appear to meet in the distance. A sharper angle of convergence means a greater perceived distance
interposition
If one objects partially blocks our view of another, it is perceived as closer
How does the brain normally compute motion?
It computes motion on the assumption that shrinking objects are retreating and enlarging objects are approaching
If a small object and a large object move at the same speed, which do we perceive as faster?
The smaller object
Stroboscopic movement
Illusion of continuous movement experienced when viewing a rapid series of slightly varying still images
Phi phenomenon
Illusion of movement created when 2 or more adjacent lights blink on and off in quick succession
Autokinetic effect
Illusionary movement of a still spot of light in a dark room
perceptual constancy
Perceiving objects as unchanging even as illumination and retinal images change
is perceptual constancy a top-down or bottom-up process?
top-down
Color constancy
Perceiving familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the object
Brightness constancy
Perceiving an object as having constant brightness despite illumination variation
Shape constancy
Perceiving the form of familiar objects as constant while the retina receives changing images of them
How does shape constancy work in the brain
The visual cortex neurons learning to associate different views of an object
Size constancy
Perceiving an object as having unchanging size despite our visual distance from it changing
Critical period
A period when exposure to certain stimuli or experiences is required
Perceptual adaptation
Ability to adjust to changed sensory input, including an artificially displaced or even inverted visual field
What are the 2 arguments about human perception?
Kant - knowledge comes from inborn ways of organizing sensory experiences
Lock - experiences shape how we perceive the world
executive functions
Cognitive skills that work together, enabling organization, planning, and goal-oriented behavior
algorithms
Methodical, logical rule or procedure that guarantees solving a particular problem
heuristics
Simple thinking strategy that allows us to make judgements and solve problems efficiently
what are 2 differences between algorithms and heuristics?
- heuristics is speeder
- heuristics is more error prone than algorithms
insight
Sudden realization of a problem’s solution, contrasts with strategy-based solutions
What part of the brain does insight activate?
Right above the ear in the right temporal lobe
Confirmation bias
Tendency to search for information that supports our preconceptions and to ignore or distort contradictory evidence
Mental set
Tendency to approach a problem in 1 particular way, often a way that has been successful in the past
intuition
Effortless, immediate, automatic feeling or thought
Representative heuristic
Judging the likelihood of events in terms of how well they seem to represent particular prototypes, might lead to us ignoring other relevant information
Availability heuristic
Judging the likelihood of events based on their availability in memory, if instances come readily to the mind, those events are perceived as common
overconfidence
Tendency to be more confident than correct, overestimating the accuracy of our beliefs and judgements
Planning fallacy
Overestimating future leisure time and income
sunk-cost fallacy
Sticking to an original plan because we have invested our time, instead of switching to a new, more efficient approach
Belief perserverance
Persistence of one’s initial conceptions even after the basis on which they were formed has been discredited
Motivated reasoning
Using their conclusions to assess the evidence instead of objectively reviewing the evidence
framing
The way an issue is posed, can significantly effect decisions and judgements
nudge
Framing choices in a way that encourages people to make decisions
Is intuition adaptive?
yes
What is intuition made from?
experience
memory
Persistence of learning over time through the encoding, storage, and retrieval of information
What are the 3 retention measures?
Recall, recognition, relearning
Recall
Retrieving information that isn’t not in your conscious awareness but that was learned at an earlier time
Recognition
Identifying items previously learned
Relearning
learning something more quickly when it is learned a second or at a later time
What is Hermann Ebbinghaus known for?
Ebbinghaus retention curve
What does the Ebbinghaus retention curve portray?
Shows that additional rehearsal/overlearning of verbal information increases retention
What are the parts of the information-processing model?
Encode, store, retrieve
encode
process of getting information into the memory system
store
Process of retaining encoded information over time
retrieve
Process of getting information out of memory storage
What is an example of neurplasticity in memory?
When you learn something new, the brain’s neural connections change
what are the 3 parts of the multi-store model?
Sensory memory, short-term memory, long-term memroy
Sensory memory
Immediate, brief recording of sensory information in the memory system
Short-term memory
Briefly activated memory of a few items that is alter stored or forgottten
Long-term memory
Relatively permanent and limitless archive of the memory system
Working memory
Conscious active processing of both sensory information and information retrieved from long-term memory
What does working memory help prolong and through what?
Prolongs memory storage through maintenance rehearsal and elaborative rehearsal
Central executive
Memory component that coordinates the activities of the phonological loop and visuospatial sketchpad
phonological loop
Memory component that briefly holds auditory information
visuospatial sketchpad
Memory component that briefly holds information about objects’ appearance and location in space
long-term potentiation
Increase in a nerve cell’s firing potential after brief rapid stimulation, a neural basis for learning and memory
explicit memories
retention of facts and experiences that we can consciously know and “declare”
effortful processing
encoding that requires attention and conscious effort
automatic processing
unconscious encoding of incidental information or familiar/well-learned information
implicit memories
retention of learned skills or classically conditioned associations independent of conscious recollection
procedural memory example
how to ride a bike
classical conditioning
type of learning in which an organism comes to associate stimuli and anticipate events
what are 3 things that are automatically processed without conscious effort?
space, time, frequency
iconic memory
a momentary sensory memory of visual stimuli, a picture-image memory lasting no more than a few tenths of a second
echoic memory
a momentary sensory memory of auditory stimuli
How many pieces of information can we hold in short-term memory. Who proposed this?
7+-2
George Miller