• Created by: grestabi
  • Created on: 05-02-19 11:25
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    • A permanent physical change in the mind where info is stored
      • Capacity - Amount of info
      • Duration - how long we remember it for
      • Encoding - how we record the info
    • Multi-store model of memory
      • Jacob's digit Span (1887) - investigates STM capacity, writes down numbers that increase in length after they disappear, found capacity average for no.s = 9.3 items, letters= 7.3
        • Conclusion: smaller capacity for letters than numbers
      • Shows a clear distinction between short term and long term memory stores.
      • Support for separate STM and LTM stores: Beardsley (1997) - location for STM is active during STM but not LTM
      • Too simple - STM is actually divided into a no. of different stores, according to the kind of memory that is stored. Applies to LTM as well
      • LTM requires more than maintenance rehearsal. Craik + Tulving - found 'deep' processing is key in creating LTM
    • Short term
      • Cap: 7+-2 (5-9 items)
      • Encod: Acoustically/ phonologically
      • Dur: 18-30 secs w/o rehearsal
    • Long term
      • Cap: limitless
      • Encod: Semantically/ procedurally/ episodic
        • Semantic = meaning
        • Episodic = order of things
        • Procedural = how we do things
      • Dur: Lifetime
    • Working Memory model
      • Created by Badley + Hitch
      • Applies to real life tasks - reading, problem solving, navigation.
      • Supported by dual task studies (Badley + Hitch, 1976)
      • Doesn't over emphasise the importance of rehearsal for STM retention
      • Little direct evidence for how the central executive works + what it does. Capacity of it has never been measured.
      • Lab based research therefore potential lack of ecological validity
      • Doesn't explain changes in processing ability that occur as the result of practice or time


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