The Multi-store Model (MSM) Flashcards
What is the sensory register?
The first part of the MSM
5 senses
3-4 pieces of info held for around 500ms before lost
When you pay attention it stores into short term memory
What is the short term memory?
Second part of MSM
Limited capacity (7+/-2)
Lasts approx 18-30 secs (p+p shows this)
Phonological similarity effect
Memory from here decays if you do not do maintenance rehearsal
What is long term memory?
Last memory store which have unlimited capacity/duration.
Ends up here when active recall (elaborative rehearsal) is in place.
Encoding info here depends on rehearsal between new and pre existing knowledge stored there.
You can retrieve memories in this store back to the STM.
1)What is encoding?
the way Info is changed so it can be stored in memory.
Layout of MSM
Attention
V Maintenance rehearsal <-retrieval
Stimulus from environment—>SR->. STM->. LTM
^ Elaborative rehearsal
Not recalled, will decay (displacement)
What is displacement?
STM has reached capacity and cant rehearse new info so it decays
What did Peterson and Peterson (1959) investigate and how?
The duration of STM using interference tests to prevent rehearsal.
What was the procedure of Peterson and Peterson?
Gave people a trigram of 3 consonants to remember, then were told to count backwards in 3s from 100.
What was the results of Peterson and Peterson?
-Correct recall of trigram was better after a short interval
-Performance dropped after 15-18 seconds (which is proof of STM duration)
What did bahric et al 1975 test?
He tested LTM using a series of memory tests on how many names and faces of students people can remember from leaving school
How many participants were tested in bahric et als test and what ages?
400 people (17-74)
What were the results of bahric et als test?
-Identification of names/faces were 90% accurate within 15 years of leaving school
-Identification was 70-80% accurate within 48 years of leaving school
What happened to Clive wearing?
-contacted a brain infection in 1985 (herpes encephalitis)
-caused damage to his hippocampus which is crucial for memory
What does Clive wearing case emphasise?
The importance of revision in forming LTM and to revisit LTM so decay doesn’t occur
Is Clive wearing research useful and why
Is not useful as it is a rare case of memory loss.
It limits how far you can generalise MSM
May not explain memory loss for everyone.
