Memory models Flashcards
What 3 stages does Atkinson and Shiffrens multi-store memory model consist of
- STSS - short term sensory store
- STM - short term memory
- LTM - long term memory
STSS - short term sensory store
- a limitless memory store for holding info for about 1 second
- viewed as a subdivided part of the STM
- streams of info are passed into and stored very briefly
- selective attention selects relevant stimuli in the STSS and directs them into the STM. Irrelevant stimuli are lost
STM - short term memory
- ‘a working memory space’ - info from the STSS and LTM are received and brought together
- has a limited capacity to store info for around 7 items
- info held for as long as attention is held
- limited to the amount of time info can be stored 1 min of less
- can be held through a process called ‘chunking’ = groups of info chucked together and remembered as on
LTM - long term memory
- contains well learned, retained and permanent coded info collected over past experiences
- limitless in capacity and length of retention
- well learnt and rehearsed movement skills from STM will eventually be stored in LTM as motor programmes
- relevant info from the LTM can be retrieved into STM workspace to be used for comparison
State 2 advantages of the multi-store memory model
- simplifies the memory process
- explains how those with brain damage may have a dis functional memory or amnesia
State 2 disadvantages of the multi-store memory model
- too simplified - doesn’t explain why we remember different sorts of info
- doesn’t prove the distinction between STM and LTM and doesn’t explain the interaction between the STM and LTM
What is Craik and Lockhart levels of process model used to explain
It seeks to explain what we do with information rather than how it is stored. Meaning of info is more relevant than repetition
What 3 things mean info received by the brain will be transferred into the long term memory
- Considered
- Understood
- Has meaning - is related to past memories
How much info is considered is called the depth of processing. The deeper the info is processed, the longer the memory trace (when brain cells retain/store info) will last. State the 3 levels related to the processing of verbal info
- Structural level - paying attention to what words look like
- Phonetic level - processing words and sounds
- Semantic level - considering the actual meaning of words (deepest level of processing)
State 2 advantages of the levels of processing model approach
- explains that if we understand info, we are more likely to remember it
- explains that the longer we consider and analyse info, the more we remember it
State 3 disadvantages of the levels of processing model approach
- the longer it takes to process info doesn’t always lead to better recall
- it is difficultly to know what deep processing involves
- it doesn’t take into account individual differences
State the 6 ways in which our memory can be improved
- Rehearsal
- Meaningfulness
- Association
- Avoiding overload
- Organising info
- Mental imagery