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How does memory work?
Input
·Atkinson and Shiffrin (1968)
·Multi-store model of memory
Sensory Store
Key Term: elaborative
rehearsal ­ making
attention
rehearsal more effective
by linking it with other
Short-Term knowledge
Memory
retrieval
rehearsal
Long-Term
Memory…read more

Slide 3

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Summarising the multi-store
model
Capacity Duration Encoding
Sensory very large fraction of same way as received my senses
Store a second e.g. acoustic if you heard the stimulus/input
STM 7±2 30 acoustic preferred
items seconds
LTM very large 30 semantic mostly
seconds ­ but others are important
lifetime…read more

Slide 4

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ATTENTION!
you may find that you have not studied the
following key experiments
this is probably because your school/college
has taught you another experiment which
displays similar findings
the bullet points given are purely for cues, you
will not learn the study from the following slides
you don't have to learn the dates of studies on
these slides
procedures are in black, findings are in blue
if you don't want to view the studies, you can
skip straight to the strengths & limitations…read more

Slide 5

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Key Study: Glanzer and Cunitz
(primacy-receny effect; 1966)
list of 15 words
½
immediate after 10 secs of counting
backwards
`primacy' ­ transferred to LTM
`recency' ­ affected by prevention of
rehearsal
separation of STM and LTM and the
importance of rehearsal…read more

Slide 6

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Key Study: Jacobs
(capacity of STM; 1887)
lab experiment
age: 8 ­ adult
sequences ­ numbers or letters at ½ second
intervals
3 items ^ until 50% success
letters & words = 7 ± 2
numbers = greater
children smaller capacity than adults
E.G. av. 6.6 8-yr-olds, 8.6 19-yr-olds
so, ^ gradually with age…read more

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