Exam 3: Chapters 7, 8, 9, 10 Flashcards
control prophecies
-shift information from one memory store to another
Atkinson-Shiffrin Model
- includes 3 memory stores that retain info in memory without using it for any purpose
- 3 stores: sensory memory, short term memory, long term memory
sensory memory
- memory store that accurately hold perceptual info for a brief amount of time
- need attn in order for it to move to STM, if no attn then info is lost
- consists of iconic memory (visual) and echoic memory (auditory)
short term memory (STM)
- limited capacity and duration (1 min)
- sensory info goes through control process of attention to move it into STM
- some of this info goes through encoding to bring info to long term memory
- retrieval brings info from LTM back to STM
Long term memory (LTM)
- memory store that holds info for extended time if not permanently
- encoding - brings info here from STM
- retrieval - brings info from here to STM
Iconic memory
- visual form of sensory memory
- holds for about .5 - 1 second
Echoic memory
- auditory form of sensory memory
- held for about 5 seconds
proactive interference
- first information learned occupies memory, leaving fewer resources left to remember newer info
- cramming
retroactive interference
- most recently learned info overshadows older memories that have not yet made it into long term memory
- snapchat?
working memory
- model of short term remembering that includes a combo of memory components that can temporarily store small amounts on info for a short amount of time
- includes phonological loop, visuospatial sketchpad, and episodic buffer
phonological loop
-storage component of working memory that relies on rehearsal and stores info as sounds or an auditory code
visuospatial sketchpad
- storage component of working memory
- maintains visual images and spatial layouts in a visuospatial code
episodic buffer
- storage of working memory
- combines the images and sounds from other two components into coherent, story like episodes
- newest member of working memory
- can hold 7 to 10 items of info
central executive
- control center of working memory
- coordinates attention and exchange of info among the three storage components
Magical Number 7
- George Miller
- study where he found participants could remember seven units of info give or take 2
chunking
-organizing smaller units of info into larger more meaningful units
Brown Peterson Test
- measures the duration of working memory
- relies on meaningless stimuli and interference
- meaningless info lasts about 15 to 18 seconds
feature binding
-visuospatial memory can accurated retain approx 4 whole objects
declarative memories
- memories that we are consciously aware of and can be verbalized
- including facts about world and personal experiences
- part of long term memory
- includes semantic and episodic
episodic memories
- declarative memories for personal experiences that seem to bw organized around episodes
- recalled from first person perspective
semantic memories
-declarative memories that include facts about world
nondeclarative memories
- actions or behaviors that you can remember and perform with awareness
- include procedural memories and conditioning
procedural memories
- patterns of muscle movement (motor memory)
- things you do
conditioning
- nondeclarative memories
- reflexive
- things you feel
long term potentiation
- enduring increase in connectivity and transmission of neural signals between nerve cells that fire together
- hipocampus = learning new memories
consolidation
- process of converting short term memories into long term memories in the brain
- cellular consolidation - neurons adapt and make changes more permanent
case of H.M (Henry Moliasin)
- hippocampus removed
- unable to form, learn, and make new memories
amnesia
- profound loss of at least one form of memory
- key features: roll of time and time of injury
- usually related to brain injury or phenomena
retrograde
- a condition in which memory for the event preceding trauma or injury is lost
- Alzheimers
Anterograde
- the inability to form new memories for events occurring after brain injury
- hippocampal removal
storage
-time and manner in which information is retained between encoding and retrieval
rehearsal
- helpful for short term memory but not long term
- understanding the true meaning helps for long term
- maintenance rehearsal - prolonging exposure to info by repetition (not helpful)
- elaborative rehearsal - prolonging exposure to info by thing about meaning (helpful)
shallow vs deep processing
- shallow is know what it is
- deep is knowing why and how it is that
encoding specificity principle
-predicts that retrieval is most effective when it occurs in same context as encoding
context dependent learning
-retrieval is more effective when takes place in the physical setting as encoding
state dependent learning
- retrieval is more effective when internal conditions match those experienced during encoding
- heart rate and physiological state
mood dependent learing
-people remember better is their mood at retrieval matches mood at encoding
context dependent forgetting
- change in environment influences forgetting
- walking into a room and forgetting why you went there
context reinstatement effect
-returning back to original location and memory that you lost suddenly comes back
emotional memories
-involve the hippocampus and amygdala
flashbulb memory
- an extremely vivid and detailed memory about an event and the conditions surrounding how one learned about the event
- can be personal or involve community
- people are highly confident that their recollection is accurate but they arent always perfect
forgetting curve
- Ebbinghaus
- studied syllables and kept testing himself noticing that he was forgetting
- shows that most forgetting happens right away the slows down
mnemonics
-technique intended to improve memory for specific info
acronym
-pronounceable word whose letters represent the initials of an important phrase or set of items
first letter technique
-first letters of a set of items spell out words that form a sentence
dual coding
- information is stored in more than one form and it regularly produces stronger memories than the use of one form alone
- such as verbal description and visual image or description and a sound
- EX: alphabet
method of loci
-connects words to be remembers to locations along a familiar path
testing effect
-taking practice tests can improve exam performance even without additional studying
schema
-organized cluster of memories that constitutes ones knowledge about events objects and ideas
constructing memory
-process where we first recall a generalized schema and then add in specific details
schema consistent
-the organization and what we expect, whats relevant, important
schema inconsistent
-things that are distinctively different and not what we expected
early memories
- need language to produce memories and schemas
- 24 mo of age
independent cultures
- America and Europe
- individual is emphasized
- remember autobiographical memories
collective cultures
- western (Asia, Africa)
- group is greater than individual
- early memories are less autobiographical
false memories
- remembering events that did not occur or incorrectly recalling details of an event
- have to be aware of this in eye witnesses
misinformation effect
- happens when info occurring after an event becomes part of memory for that event
- Loftus - stages a car accident, asks if there was a yeild sign when it was really a stop sign and witnesses agreed it was yield sign (false)
DRM procedure
-participants study a list of highly related words called semantic associates then asked and able to identify the most obviously missing word (critical lure)
imagination inflation
-increased confidence in a false memory of an event following repeated imagination of the event
false photographs
-participants are shown photographs that have been altered by adding false objects and participants agreed and told stories relating to the fake object
recovered memories
- memories of traumatic event that are suddenly recovered after blocking the memory of that event for a long time
- also known as repression from Freudian psychoanalysis
recovered memory controversy
- difficult to study because it is not reliable or valid
- Beth Rutherford was told her dad raped her and she falsely remembered details of event leading to many issues
concept
- mental representation of an object, event or idea
- not independent, they are related
categories
-clusters of interrelated concepts
classical categories
-objects or events are categorized according to a certain set of rules or by a specific set of features
definitions
-how we put things into category
graded membership
-observation that some concepts appear to make better category members than others
prototypes
-mental representations of an average category member
semantic network
- an interconnected set of nodes (or concepts) and the links that join them to form a category
- nodes represent concepts
- links connect them together
priming
- activation of individual concepts in long term memory
- makes you more aware of certain concepts
linguistic relativity (Whorfian hypothesis)
- the language we encounter and use determines how we understand the world
- meaning of word “empty”
- the way words describe colors
problem solving
-accomplishing a goal when the solution or the path to the solution is not clear
well defined problem
-problem that has a clear initial state and goal state
ill defined
- problem that may be lacking definition in one or more ways
- ambiguous initial state
- lack of familiar operators
initial state
-describes what the condition is at the outset of a problem
goal state
-what you need or desire as an outcome
obstacles
-something that slows or prevents progress towards goal
operators
-techniques we use to reach goal state
algorithm
- problem solving strategies based on a series of rules
- give precise answers
heuristics
- problem solving strategies that stem from prior experiences and provide an educated guess as to what is most likely the solution
- short cut
self imposed obstacles
-happen when asked to think outside the box
mental set
-cognitive obstacle that occurs when an individual attempts to apply a routine solution to what is actually a new type of problem
functional fixedness
-an individual identifies a potential operator but can only think of its most obvious function
representativeness heuristic
- making judgements of likelihood based on how well an example represents a specific category
- assumption
availability heuristic
-estimating the frequency of an event based on how easily examples of it come to mind
anchoring effect
- individual attempts to solve a problem involving numbers and uses previous knowledge to keep the response within a limited range
- use an anchor to solve problems
belief perseverance
-occurs when an individual believes he or she has the solution to the problem or the correct answer for a question and accepts only evidence that confirm those beliefs
confirmation bias
- individual searches for only evidence that will confirm his or her beliefs instead of evidence that might confirm them
- answer does not already exist