multi store memory model Flashcards
how does the msm flow
stimulus from enviroment
sensory register
shot term memory
long term memory
sensory register consists off
iconic
echoic
other sensory stores
what transfers things from the stm to ltm
maintenance rehearsal
what transfers things from ltm back to stm
retrieval
what can happen at all stages
decay
who proposed the msm
Atkinson and shiffrin
iconic
coded visually
echoic
coded acoustically
sensory register duration
less than half a second
sensory register capacity
high capacity
stm duration
18-30 seconds
stm capacity
5-9
maintenance rehearsal
repetition of info
ltm capacity
unlimited
ltm duration
a life time
ltm encoding
semantically
bahrick et al
the case of hm
underwent brain surgery to relieve his epilepsy
hippocampus removed from both sides of his brain
ltm was lost
performed well on immediate memory span , stm
SUPPORT stm and ltm diff stores
strength
supporting evidence research
baddely found ;
stm mix up words that sound similar
ltm mix up words that mean similar
show stm = acoustic encoding
ltm = semantic encoding
show they are two different stores
weakness
more than one type of stm
msm = stm unitary store
shall ice and warrington ; KF
Kf had amnesia
found his stm recall of digits when read out to him was poor
but much better when he could read the digits himself
- other stm store for non verbal sounds
unitary stm limits msm as there must be a stm to process visual info and another for auditory info , wmm includes these
weakness
more than one type of rehearsal
only acknowledges maintenance rehearsal ie word lists
craik and Watkins found ;
describe two types of rehearsal
maintenance rehearsal , repetition stays in stm and elaborative rehearsal linking info to pre existing knowledge
- limitation of msm a another research finding can not be explained by the model
weakness
more than one type of ltm
episodic
semantic
procedural
msm = ltm unitary store
