Multi store model of memory

Question 1

who developed MSM?

Answer 1

Atkinson and Shiffrin
- linear model with unitary stores

Question 2

MSM stores

Answer 2

environmental input-sensory register (forgotten) -attention- STM (^maintenance rehearsal) (forgotten) consolidation> retrieval< LTM (forgotten)

Question 3

Sperling 1960 procedure

Answer 3

• ppts saw a grid for 50 milisecs of various digits
• after a tone, asked to write down all 12 items or recall a particular row

Question 4

Sperling 1960 findings

Answer 4

• high tone=top row, medium tone=mid row, low tone=bottom row
• whole thing = 42% recalled
• one row = 75% recalled
• suggest sensory info cant hold info for long around 250 milisecs
• limitless cap and modality free coding

Question 5

MSM strengths

Answer 5

• supporting evidence showing existence of STM and LTM as separate stores e.g. Beardsley found pre-frontal cortex active in STM but not ltm
• case study evidence e.g. HM could form new STM but not ltm

Question 6

MSM limitations

Answer 6

• research has experimental reductionism e.g. explained w/ isolated variables
• too simplistic e.g. wmm further divides STM so no single unitary stores as MSM suggest