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Outline the main features of the Multi Store Model (6 marks)
The Multi Store Model of memory proposed by Atkinson and Shiffrin envisaged memory as a flow of information in an information processing system.
It consists of 3 seperate stores known as the Sensory Memory, Short term memory and long term memory.
Information from a stimulus enters the sensory memory.
If attention is payed to that stimulus, it is sent to the Short term memory. If that is rehearsed, it enters the long term memory.
They all have constraints in terms of capacity, duration and encoding .
The Sensory memories capacity is very limited, the duration is extremely short and the encoding is mainly visual, auditory and tactile.
The STM has a limited capacity and a short duration. The encoding is mainly auditory.
The LTM has an unlimited capacity and an unlimited duration. The encoding is mainly semantic encoding.
The reasons for forgetting in STM is mainly displacement. For LTM its mainly displacement. The memory is there but it cannot be reached.
Can someone please mark this and tell me how i did and how i can improve.
- theory is based on a cognitive model of memory (i.e. model using the brain as a computer)
- short term memory - you can talk about the capacity of storage (e.g. 30s, 7 numbers, increased by rehearsal etc.)
i would clarify this :
"The reasons for forgetting in STM is mainly displacement. For LTM its mainly displacement. "
i think the reason for failure to retrieve memory from the short term is its limited capacity, not as you said displacement which I think only applies to retrival from the long term memory.
also, i am not sure i understand the part of encoding for each memory store, maybe you can explain it to me.