Working memory
the stage where we store info while also processing incoming info (control centre)
short term memory
holds onto limited information for a short period of time
long term memory
large capacity storage system acquired throughout lifetime
chunk
memory unit that consists of several components strongly associated with one another
how many individual items can we hold in our short term memory?
about 5-9 items
What did the Brown/Peterson and Peterson technique show about short term memory?
Short term memory is fragile, stored in seconds
inspired further study and increased support for cognitive approach
describe the Brown/Peterson and Peterson Technique
asked to remember items, then given a distracting task, then tasked to recall earlier items
What is the serial position effect/test?
present a list and ask people to recall the list
What is the recency effect and what if the assumption behind it?
recall end of list in a serial position test
most recent information in short term memory
what is the primacy effect and what is the assumption behind it?
recall for beginning of list
less competition and more rehearsal
semantics
the meaning of words and sentences
Proactive Interference (PI)
trouble learning new material because previously learned info keeps interfering with new learning
what can release proactive interference
changing chunk type
(ABC, OIK, ALE –> 123, 492, 478) problem remembering ALE, but no problem remembering 123
How do semantic factors influence short term memory?
influences the number of items we can store
what does the # of items stored in short-term memory depend on?
chunking strategies and word meaning
Describe the Information-Processing Approach
computer comparison, info processed in stages
Atkinson-Shiffrin model
memory involves a sequence of steps (one storage to the next)
Describe the stages of the Atkinson-Shiffrin Model
sensory memory–>short-term memory–> long term memory
control processes
intentional strategies to improve memory
what is sensory memory described as now?
Perception
is the Atkinson-Shiffrin model still relevant?
No, cognitive research has since moved onto the theory of working memory
Working memory
brief, immediate memory for the limited amount of material that you are currently processing
(actively coordinates ongoing mental activity)
control centre
what are the characteristics of working memory?
active process
capacity and time limited
Phonological loop
can process limited number of sounds for a short period of time