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Evaluation of the Multi-Store Model

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Submitted By Holtyy
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The multi-store of memory was proposed in 1968 by Atkinson & Shiffrin, it suggests that memory is a flow of information through a series of systems. There are three distinct stages of the system; sensory memory, short term memory and long term memory. Information passes through each stage of the system in a linear fashion by maintenance rehearsal. Also, external stimuli, like hearing the headline for the day's news, first enters the sensory memory in an uncoded form where they are registered for a very minuscule period of time. It is not until we focus our attention on the object, for the information to be transferred to the short term memory. For example, we notice everything our eyes see, but we do not transfer it all into the STM, otherwise we would remember everything that happened. However, once something has our attention, the short term memory stores 5-9 items in an acoustic code for around 15-30 seconds. It is therefore easy to forget things at this stage, as information will be lost within 30 seconds unless it is repeated or rehearsed. Memories from this store are lost either because new information comes along and pushes the old information out, which is called displacement, or because they simply fade away which is called Decay. However, if information is sufficiently well rehearsed (the most commonly accepted theory is that the information is transferred from the STM to the LTM by elaborative rehearsal) it is processed into the long term memory store. In the long term memory store, an unlimited amount of information may stay for as long as a lifetime through semantic encoding. However, it may be forgotten because memory traces can decay, ‘new’ information causes confusion and interferes with the old information or particular cues within the environment are not available causing retrieval failure. For example, people who say they witnessed a murder, may

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