MMM AO3

• A strength is supporting research from murdock

  -looked at serial position effect

  -found you are more likely to remember words at the beginning of a list (primacy effect) and end (recency effect)

  -words in middle are forgotten
• You are more likely to remember words at the beginning

  -bc u have had more time to rehearse them

  -the last words are still in STM
• A strength is the case study of patient HM who suffered from epilepsy and underwent brain surgery to correct this, removing his hippocampus

  -Following this surgery, HM could remember events and some information and details from before the surgery (LTM) but he could not form new memories (STM could not be transferred to LTM)

  -This supports the argument that the brain uses separate regions or structures for STM and LTM
• Another supporting piece of evidence is from Beardsley who found that

  -the prefrontal cortex is active during STM but not LTM tasks

  -Squire et al found the hippocampus active when LTM engaged

  -this demonstrates there are different stores in memory
• A weakness is that much of the research into the MSM uses artificial tasks such as recalling a string of digits/letters

  -Much of the research into the MSM uses artificial tasks such as recalling a string of digits/letters

  -Baddeley (1966)used artificial stimuli instead of meaningful material

  -This suggests there is a limited application to real world memory use

  -The use of artificial tasks and application means that the study lacks ecological validity
• Another weakness is that the MSM may be too simple:

  -The MSM may be too simple

  -Research suggests that STM and LTM are made up of more than one store

  -The working memory model supports the above idea, as it includes five components of STM