Psychology-Multi-store model of memory

  • Created by: Daisymac
  • Created on: 19-01-19 14:06
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  • Multi-store model of memory
    • What?
      • A representation of how memory works in terms of three stores called sensory register, short term memory and long term memory. It describes how info is transferred from one store to another
      • Atkinson and Shiffrins 1971 multi store model describes how info flows through the memory system
        • Picture of MSM
      • Information flows in a linear process and each store is unitary
    • Sensory register
      • A stimulus in the environment enters the sensory register
      • This store codes via whatever sense it enters the store from.
      • The capacity of the sensory register is very large but it can only be held for half a second
    • Short term memory
      • If you pay attention, the information moves to the short term memory
      • This store has the duration of approximately 18 seconds without rehearsal.
      • It codes acoustically
      • Information is lost by decay or displacement
      • Rehearsal maintains the memory in this store
    • Long term memory
      • Prolonged rehearsal moves the information to the long term memory
      • Limited amount of storage
      • This store codes semantically
      • Info is lost by decay or intereferance
    • Evaluation
      • +ve= supported by studies eg. baddeley . Demonstrates that ltm and stm code differently, and so shows they are different stores
      • -ve= different types of stm, as proposed by Shallice and Warrington 1970 who studied KF, a patient with amnesia
        • STM for digits was poor when asked to say them aloud but was better when he could read them to himself
      • -ve More than one type of rehearsal. According to MSM the amount of time you rehearse matters to transfer into LTM. Craik and Watkins 1973 suggest that it is the type of rehearsal thats important
        • Suggest that elaborative rehearsal instead of prolonged rehearsal is needed to transfer from STM to LTM
      • -ve= studies use artificial material


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