Multi store memory model

who made the model and what does linear model and passive stores mean

atkinson and shiffrin

linear model-infomation passes in one direction

passive store-store holds info before being passed on or lost

1st level of the MSM

coding

capacity

duration

how info is passed on

sensory registed

sensory specific

very large

very short-250ms

attention

2nd level

coding

capacity

duration

how info is passed on

STM

accousticly

7+-2

18-30s

rehersal

3rd level

coding

capacity

duration

how info is retrieved

LTM

Semantic

unlimited

unlimited

retrieval

Supporting research

coding for stm and ltm-baddeley

remember accoustically and semantically dis/simililar words

imediate recall worse for accoustically similar and after 20 mins worse for semantically similar

capactiy for STM-Jacobs

give 4 numbers or letters and increase number

average recall for number 9.3 and letter 7.3

duration of ltm-bahrick et al

392 american ppx-17-74 yr old

50 photos from highschool year book

after 48 years recall was 70% accurate

Evaluation

-low ecoological validity-task lack mundane realism

-model of memory cannot be directly observed so inferneces are made which could be incorrect