Memory models

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  • Created by: christie
  • Created on: 03-01-14 18:21
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  • Memory
    • Multi-store model (Atkinson & Schiffron 1968)
      • Short term memory
        • Attention
        • Limited duration & Capacity
        • Maintenance rehearsal
      • Sensory memory
        • Brief Duration
        • Attention
      • Long term memory
        • Maintenance rehearsal
        • Unlimited duration & capacity
      • +
        • Evidence for separate stores (Glanzer & Cunitz 1966 or Sperling 1960)
          • Has caused much further research
            • Includes details of structure
              • Evidence for encoding, duration and capacity
      • -
        • Oversimplified
          • STM is not unitary store (KF 1970)
            • LTM not unitary -semantic, spisodic memories
              • More than maintenance needed-Craik &  Lockhart 1972)
      • Validity
        • participants often psychology students-guess experiment
          • lab experiments- demand characteristic,  well controlled
    • Working memory model (Baddeley & Hitch 1974)
      • Vislo-spacial sketch pad
        • Visual cached & inner scribe, deals with location & movement
      • Phonological Loop
        • Phonological store & articulation process-maintenance rehearsal, deal with auditory and speech based info
      • Episodic Buffer
        • General store & integrates info from other stores (+LTM)
      • Central executive
        • Resource allocation, small capacity
      • +
        • More detailed, shows sub systems in STM, also process more than structure in STM
          • MRI shows CE more active in 2 tasks (Bunge et al 200)
            • Explains KF, phonological loops damaged but otherwise no trouble
              • Episodic buffer compare recall of related words better than unrelated (Baddeley et al 1987)
      • -
        • Central executive explains nothing e.g. unknown capacity- likely  several components
          • Focuses only on STM unlike MSM
            • Experiments questioned-Paulesdo study small sample size, brain damamged individuals have no before/after rsults
      • Explains being able to do two different tasks at same time but not similar tasks
      • Validity
        • Same as MSM

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