Multi store model of memory

• what psychological research has shown about short-term memory according to the multi store model of memory.

  Capacity is thought to be 7 items plus or minus 2 items (between 5 and 9).

  Capacity can be increased by chunking items together to reduce the number of separate items overall

  Duration is thought to be approximately 18-30 seconds.

  Duration can be extended by verbal rehearsal ie information can be maintained in the rehearsal loop

  Coding is acoustic, sound based, phonological, auditory.

  Causes confusion where material sounds the same
• Describe the multi-store model of memory.

  sensory register, STM and LTM are separate, unitary memory stores

  information passes from store to store in a linear way

  role of attention to pass info from sensory registers to short term memory ; rehearsal to pass info from STM to LTM

  explanations of forgetting are different for each store
• Capacity, duration and coding of sensory register

  Capacity: over 100 million cells in one eye

  Duration: less than 0.5 seconds, 250 milliseconds

  Coding is modality specific
• Capacity, duration and coding of short term memory

  Capacity 7+-2 items

  Duration: approximately 30 seconds, information can be lost within a few seconds if not rehearsed

  Coding: acoustically
• Capacity, duration and coding of long term memory

  Capacity and duration : potentially limitless

  Coding is sematic