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Atkinson and Shiffrin (1968) suggested the Multi-Store Model of Memory. It includes three
separate stores, with information running from the sensory store to the long term memory
(LTM) in one direction. Each store, therefore, has it's own characteristics.…read more

Slide 3

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The Sensory Memory
· This is a brief store of unprocessed
information from the senses
· Sperling suggests it can store up to 4 items of
information at a time
· Inattention means that information from this
store cannot be passed on to the short term
memory (STM)
· Therefore, it has a limited capacity and very
brief duration…read more

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The Short Term Memory (STM)
· This is the conscious part of the memory
· Miller suggests it has the capacity for 7 +/- 2
items of information
· Peterson & Peterson suggest it has a duration
of 18-30 seconds
· Conrad, Baddeley propose the idea that main
encoding is done acoustically
· Information is lost through limited capacity
(displacement)…read more

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Capacity of the STM
· Jacobs (1887) used Digit Span
Technique (repetition of a string of digits
until no more can be recalled) and
found the STM's capacity to be 7 on
· Miller (1956) proposed the idea that the
capacity of the STM is "7 plus or minus
2" pieces of information…read more

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Duration of the STM
· Peterson and Peterson (1959)
concluded that information dissappears
from the STM or decays quickly when
rehearsal of information is prevented.
To conclude this they pants trigrams,
then prevented rehearsal by asking
participants to count backwards, then
tested intervals of which the trigrams
were required to be recalled eg 5s,10s…read more

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