Memory- Multistore model (Atkinson and Shiffrin,1968)

Memory- Multistore model (Atkinson and Shiffrin,1968)

1. The three sections: Sensory Memory, Short-Term Store and Long-Term Store

2. Sensory

   • Capacity: Limtied, 4 to 5 items
   • Duration: 50 milliseconds
   • Encoding: Iconic, Echoic
   • Forgetting: Decay
   • Key Studies: Sperling (1960)

3. Short-term memory

   • Capacity: 5 to 9 items (7+/-2)
   • Duration: 3 to 18 seconds
   • Encoding: Echoic
   • Forgetting: Displacement
   • Key Studies: Miller (1956), Peterson and Peterson (1959), Conrad (1964)

4. Long-term memory

   • Capacity: Unlimited
   • Duration: Few minutes to almost a lifetime
   • Encoding: Mainly Semantic
   • Forgetting: Interference
   • Key Studies: Bahrick et al(1975), Baddely (1966)

5. Definitions

   • Duration: The amount of time it stays in the store
   • Capacity: The amount of information that the store can handle
   • Encoding: The form in which the store handles the information