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Outline and evaluate the multi-store model of memory

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´╗┐Outline and evaluate the multi-store model of memory (12 marks) Atkinson and Shiffrin?s multi-store model suggests that long-term memory and short-term memory are like hypothetical stores of information. They believe that memory has three stages; sensory memory, short-term and long-term memory. Information first enters sensory memory where it undergoes encoding and then transfers to short-term memory. Once there it?s rehearsed or verbally repeated in order to undergo further encoding before being transferred to long-term memory, otherwise it will decay. A big aspect of the model was rehearsal; information can?t reach long-term memory unless it?s rehearsed. ...read more.


Peterson and Peterson?s research supports the role of rehearsal. They found that when groups of participants were asked to recall words from a list, but were prevented from rehearsing them by having to count backwards in threes, recall dropped from 80% after a three second interval, to 20% after an eighteen second interval, suggesting that rehearsal is necessary to embed information in the LTM. This is a strength of the model in its views on rehearsal. ...read more.


Another Strength of the model is that people with Korsakoff?s syndrome (amnesia that?s mostly caused by chronic alcoholism) provide support for the model. They can recall the last items in a list (unimpaired recency effect), suggesting an unaffected STM. However, their LTM is very poor. This supports the model by showing that STM and LTM are separated stores. Second weakness of the model is that in the model, information is transferred from STM to LTM through rehearsal. But in real-life people don?t always spend time rehearsing, yet they still transfer information to LTM. Rehearsal is not always needed for information to be stored and some items can?t be rehearsed. Gursharan Singh ...read more.

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