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619950
Short Term Memory
Description
A Levels Psychology (Memory) Mind Map on Short Term Memory, created by Aimee Johnson on 10/03/2014.
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a level exam board: aqa a
memory
psychology
psychology
memory
a levels
Mind Map by
Aimee Johnson
, updated more than 1 year ago
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Created by
Aimee Johnson
over 10 years ago
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Resource summary
Short Term Memory
Capacity
7+/- 2 items of information
Miller 1956
found out that most people could only repeat back between five and nine items
Chunking can increase the capacity of short term memory
ITV
GCSE
Duration
Peterson and Peterson 1959
Aim: Establish the duration of short term memory when Rehearsal is prevented
Conclusion: Without Rehearsal, the duration of STM is only a few seconds
Held up to 30 seconds
Participants heard a Trigram.
They were asked to recall it immediately or recall it after a set of retention interval
3,6,9,12,15 or 18 seconds
During the period before recall, they were asked to count backwards in 3's from a specified number
To prevent Maintenance Rehearsal
Encoding
The way the information is put into each store
Acoustic form
Conard 1964
Aim: To establish the form in which information is encode into STM
Even when the information is presented visual,encoding was acoustically
Participants were shown a sequence of six letters
They were asked to write them down as the appeared,but the presentation ran to fast for them to keep. Therefore, keeping the information in STM
Participants often made acoustic errors, where the letters that they had seen were replaced by those that sound simular
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