Proposed a memory system that is divided into 3 stores.
Information passes through each store in fixed sequences and capacity and
duration are limited on each stage. The transfer between each stage may require
recoding. Information in the short term memory (STM) is encoded. It will remain
in the STM for roughly 9 seconds. After rehearsal of the information, it is
passed through to the long term memory and can remain there forever. However
information can be lost from the long term memory due to decay and
interference.
SENSORY MEMORY (IMMEDIATE MEMORY)
CAPACITY - 9 ITEMS
DURATION - 200/400 MILLISECONDS
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SHORT TERM MEMORY
ACOUSTIC
CAPACITY - 7+/- 2 ITEMS
DURATION - 20/30 SECONDS
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LONG TERM MEMORY
SEMANTIC
CAPACITY UNLIMITED
DURATION UNLITIMED LIFE TIME!!
At each stage information is recoded and either passed through successfully of lost through decay, illness, interference.
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