Outline and Evaluate the Multi Store Model of Memory (12 marks)

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Outline and Evaluate the Multi  Store Model of Memory (12 marks)

Information from the environment enters sensory memory, encoded through one of the 5 senses depending on the type of information. If attention is paid to this information it will enter short term memory  STM which, according to Miller, has a capacity of 7+/- 2 bits of information. It can last up to 18 seconds, without rehearsal, according to Peterson and Peterson. Baddeley found that information in STM is encoded mainly acoustically, although. If maintenance rehearsal takes place it will remain in STM or be forgotten through decay or displacement. Elaborative rehearsal will then transfer information into long term memory ( LTM ) which has unlimited capacity and, according to Bahrick, can last a lifetime. Baddeley found that LTM encodes mostly semantically. Information can be retrieved from LTM to be used in STM when needed and can be forgotten through decay or displacement.

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A particular strength of this model is that it is supported by evidence from clinical amnesiacs, and as this is based on real people rather than experiments, it is more ecologically valid and therefore can be applied to everyday life. For example, H.M. underwent brain surgery to cure severe epilepsy ...

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