Multi-Store Model of Memory

Multi-Store Model of Memory

1. Atkinson & Shiffrin (1968)

   • Three stores (Sensory memory, STM, LTM)
     • Information collected from stimuli

2. Sensory memory (SM)

   • Duration (50 milliseconds)

3. Short-term memory (STM)

   • Capacity = 7+-2

4. Long-term memory (LTM)

   • In the hippocampus
   • Duration = lifetime
   • Encoded = semantically
   • Capacity = 1013-1015 neurons

5. Case study (support)

   • HM
     • Epilipsey in hippocampus (removed)
     • Can't form LT memories
     • Difficulity recalling
     • Form ST memories
     • Shown previous skills
     • Remember LT memories
     • Shows that need ST to create LT memories

6. Case study (against)

   • KF
     • Motorbike accident = brain damage
     • Remembers visually
     • Can't remember verbally/auditionally
     • Conclusion = Multi-Store is too simplistic

7. Craik & Lockhart (1972)

   • Believed LT memories are processed more deeply
   • Study = semantic words are remembered more easily than rhyme/shallow words
   • Proved = rehearsal isn't the only way into LTM