Multi store model of memory

Multi store model of memory

1. atkinson and shiffrin

2. seperate memory stores

   • info moves through system
   • stores linked by processing

3. sensory register

   • takes in all environmental stimuli
   • duration = less that half a second
   • high capacity = over 100,000,000 cells in the eye storing data
   • coding related to each sense
   • attention transfers this info to STM

4. STM

   • limited capacity of 5-9 items
     • Miller
   • coded acoustically
     • baddeley
   • duration of about 30 secs unless rehearsed
     • Peterson and Peterson
   • rehearsal passes on to LTM

5. LTM

   • unlimited capacity
   • codes in terms of meaning (semantic)
   • unlimited duration
     • Bahrick et al
   • transfers to and from STM in retrival process

6. Evaluation

   • supported by research
     • supporting studies use artificial materials
   • evidence suggests different types of STM
     • shallice and warrington - amnesia patient(KF) found digits poor in memory when read to but better when read to himself
   • only includes one type of rehearsal
     • maintenance
     • elaborative
   • oversimplifies LTM
     • evidence to show LTM isn't a unitary store