multi-store model

• Who proposed the msm?

  atkinson and shiffrin in 1968
• msm assumes that there are 3 unitary stores and that info is transferred between these stores in a linear sequence
• what is the order of stores

  sensory register, stm and ltm
• what is the sensory register

  store that contains all the info from the senses
• what is the capacity of the sensory register?

  unlimited as all info arrives to the sensory regsiter, though not much attended to
• what is the duration of the sensory register?

  up to two seconds
• what is the mode of representation?

  modality specific, info is in the same form as it is received
• what is the stm?

  short term memory is made up of info that has been attended to from the sensory register
• what is the capacity of the stm?

  7 plus or minus two chunks or items of info
• what is the duration of stm?

  up to 30 seconds
• what is the mode of representation for the stm?

  auditory, stored by sound, rehearsed vocally
• how is stm encoded

  acoustically
• what is the ltm

  when info is rehearsed it moves to the ltm
• what is the capacity and duration

  potemtially infinite and unlimited
• what is the mode of representation for the ltm

  semantic, relies on meaning
• primacy effect

  info learnt first is well remembered as has longer to be rehearsed
• recency effect

  info learnt last is well remembered
• proactive interference

  something learned earlier interferes with current learning
• retoractive interference

  something learned later gets in the way
• support from clive wearing

  CW showed that there is an area of the brain (hippocampus) which if damaged prevents new memories from being laid down, suggests hippocampus holds the stm, research supports the idea that there are 3 unitary stores
• weakness of Clive wearing

  shallice and warrington, showed that a victim of a motorbike accident was able to add new long term memories even though his stm was damaged, suggests memory is more complicated that the msm can explain, reductionist
• support for LTM

  Bahrick found that participants were 90% accurate in remembering faces and names of classmates 34 years after graduation, supports the idea that the duration of ltm is unlimited
• weakness of msm

  Steyvers and Hemmer focuses on how memory experiments lack ecological validity and do not yield valid data, coul affect the validity of supporting evidence from Bahrick and Baddeley