multi-store model of memory

• how does the sensory register code?

  for each of the other senses
• what is the duration of the sensory register?

  0.5s
• what is the capacity of the sensory register?

  very high
• what sense is iconic memory?

  visual infomation
• what sense is echoic memory?

  acoustic information
• how is information coded in the STM according to the MSM?

  mostly accoustic
• what is the capacity of the STM?

  7 +/- 2
• what is the duration of the STM?

  18s
• how is information coded in the LTM?

  semantically
• what is the capacity of the LTM?

  Potentially unlimited
• what is the duration of the LTM?

  potenially lifelong
• how is info moved from sensory register to the STM?

  attention
• how in info moved from the STM to the LTM?

  maintenance rehearsal
• give a strength of the MSM model

  1) Baddely's research into coding shows the STM and LTM are independent memory stores (STM codes accousitcally, LTM codes semantically)

  2) study of HM: after a brain injury his STM remained intact but his LTM was damaged so he was unable to form new memories
• give a limitation of the MSM model

  1) experiments supporting the MSM lack external validity, eg. use letters / numbers rather than things occurring in everyday life

  2) KM: has amnesia, did poorly when recalling digits that had been read aloud but did much better when recalling digits he had seen and had to remember