Chapter 7 Flashcards
What is memory
- retention of information over time
how often do we use memory
all the time; often unaware
Paradox of memory
can be amazing; but also terrible
Is memory accurate
yes
how do we construct memories
- from small fragements of information
memory is ____
malleable
how do we contruct our memeory
actively reconstruct
Hyperthymestic syndrome is also known as
highly superior autobiographical memory
Hyperthymestic syndrome
- people can often recall every detail in there day with perfect clarity
what are the three types of memory
- Sensory memory
- Short term (working) memory
- Long term memory
sensory memory
- closely tied to raw material of experiences
- brief storage system for perceptual information before it passes onto the short term memory
types of sensory memory
- iconic memory (visual)
- Echonic memory 9auditory)
sensory memory was studied extensively by
Sperling (1960)
Sensory memory methods
- whole memory report
- partial repost method
- partial report-delayed method
how long does iconic sensory memory last
only a few seconds
Photographic memory
- extremely rare
- hold a visual image in their mind with such clarity that can describe it perfectly
Photographic memory suspected cause
may be due to long iconic sensory memory duration
- allows more detailed memories to be stored
photographic memory is also known as
eidetic imagery
Short term memeory is also referred to
woking memory
STM
memory system that retains a limited amount of information for a limited duration
why is short term memory referred to as working memory
because information is held in the STM is information we are currently thinking about, attending to, or actively processing. It is what we are consciously aware of and working with
how long is STM
no greater than 20secs
- without using control process
control process
- things we do to keep refreshing information in the STM so it doesn’t degrade
control process example
Rehearsal
- repeating words over and over to yourself
Short term memeory duration can be explained by
Brown- Peterson and Peterson Task
what is the Brown-Peterson and Peterson task
- give participants a list of item
- give then a distractor task
- after the distractor task, ask people to recall as many items as possible
How can memory be lost in short term memory
- decay
- interference
Decay
the loss of STM information due to the passage of time
Interference
- new and old information create conflict that causes information to be lost from the system
What are the two types of Interference
- Proactive
- Retroactive
proactive interference
- old information causes problems for learning about new interreference
Retroactive interference
- new learning causes problems for earlier learning
Millers magic number
Capacity of short term memory is 7 plus or minus 2 items
STM capacity was originally tested using
digit span test
Most adults have a digit span of
5-9 items
how can you increase STM capacity
- chunking
chunking
process by which we group items into larger “bits”
how can you increase duration
rehearsal
what are the 2 different types of rehearsal
- Maintenance
- Elaborative
Maintenance rehearsal
- simply repeating information back into its original form
- generally effortless
Elaborative rehearsal
elaborate on things that we need to remember by linking them together in a meaningful way
- takes effort
Elaborative rehearsal supports the idea
that there are different levels of processing (LOP)
LOP
- states the more meaningfully we engage in material, the better we remember it
- levels range from shallow (worst) to deep (best)
Long term memory
- our relatively enduring (from minutes to years) retention of information stored regarding our facts, experiences, and skills
LTM has a longer ______ and ______ than STM
capacity
duration
errors in LTM are generally based on
semantic information
- mistakes often related to meaning
errors in STM are generally
acoustic
- mixing up information based on similar sounding items
Serial position effect
- refers to the U-shaped relationship between a words position in a list, and its probability of recall
what do we tend to see from the serial position effect
- primacy
- recency
what are the 2 main divisions of LTM
- Explicit (declarative)
- Implicit (non-declarative)
what are the 2 types of declarative memory
- Semantic
- episodic