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Working memory serves more than one function. Discuss. Baddeley and Hitch 1974 (Citied in Baddeley 1993) proposed that the concept of short-term memory should be replaced with that of working memory to account for their findings from amnesic patients who performed poorly on digit span tasks . These patients could not hold items in their short-term store but seemed to show signs of long-term learning which contradicted earlier models of memory including that of Atkinson and Shiffrin's 1968 multi-store model (Cited in Baddeley 1990). Working memory is believed to act as a temporary storage system which holds in coming information from the senses and most recently stimulated information from the long term memory, it then manipulates the information in and out of the short-term memory. Baddeley and Hitch's working memory model is not a single unitary system but one that comprises of three components. Firstly there is a core system that...

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