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Compare the differences between any two models of memory.

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Compare the differences between any two memory models In 1968, Atkinson and Shiffrin suggested that they could explain memory as three distinct stores; the Sensory memory (this holds information for an extremely brief time), the STM (which had limited capacity and a very short duration) and the LTM (which had unlimited capacity and was potentially timeless in its duration). They said that if a person "focused" on information in the Sensory model, the information is then transferred to the STM. They then said that the information would travel to the LTM through rehearsal, they claimed that the more the information is rehearsed the better it would be stored in the LTM. ff Rehearsal Baddeley and Hitch put forward their own, theory on memory six years later, but it only explained short-short term memory. They said that the Short term memory was in fact a number of different stores. They believed this, as do many psychologists still, because when trying to do two visual tasks at the same time, you perform less well than when doing them separately (e.g. ...read more.


if someone was carrying out a task in the STM (running through a long strand of random numbers), the scan would show that the Pre-frontal cortex was more active whilst if a task was being carried out that required the LTM (recalling a birthday of someone special) the scan would show the Hippocampus was more active. A study carried out by Milner (1966) furthered supports Atkinson's and Shiffrin's theory that there are separate memories even in the physical world, for Milner was studying a man whom he called H. M. who had to have both his Hippocampi removed due to a tumour. This appeared to mean he could no longer form long term memories but was still capable of performing a STM task.ff Support for the Working memory model is easy to find e.g. Baddeley and Hitch (1976), they gave the participants two tasks to carry out simultaneously, Task 1 was to say true or false to statements (the experiment can be seen on page 15 of the Cardwell, Clark, Meldrum book), the ...read more.


ff Even with all the evidence to support the MS model, it is still a too oversimplified and reductionist theory of the memory process. This can be backed by the Multi-store model only proposing one long term store whilst, vast amounts of research suggest that there are many different stores (e.g. semantic, implicit and explicit). It also only proposes one short term store whilst Baddeley and Hitch, who put forward the Working memory model, show in one of their tests, that there are at least two stores, the Visuo-spatial sketchpad and the Phonological-loop. Baddeley and Hitch also provide much more detailed descriptions and explanations about the STM than those of Atkinson and Shiffrin, but they failed to give any theory on the LTM, which though a fairly minor failing, it does mean that you cannot easily predict how any, if they any of the units in the Working memory model do, interact with the LTM and how information is recalled and remembered. ff ?? ?? ?? ?? Jacob McCarthy 12Ri 1 ...read more.

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