MSM eval

• msm eval limitation evidence to suggest theres more than one STM store

  Evidence to suggest there's more than one STM store

  KF had amnesia (Shallice and Warrington 1970), STM recall for digits was poor when he heard them but better when he read them

  Other studies also confirm there may also be a separate STM store for non-verbal sounds (noises)

  Therefore the MSM is wrong to claim there is just one STM store processing diff types of info, there must be separate ones to process visual info and one to process auditory
• MSM eval strength research support

  Research support: case studies have also shown that diff areas of the brain are involved in STM and LTM

  One case study involved a man referred to as HM (Scoville and Milner)

  His brain damage was caused by an operation to remove the hippocampus from both sides of his brain to reduce severe epilepsy he has suffered

  HM's personality and intellectual remained intact but he could not form new LTMs, although he could remember things from before the surgery
• MSM eval Limitation is prolonged rehearsal is not needed for STM-LTM transfer

  Limitation is prolonged rehearsal is not needed for STM-LTM transfer

  According to the MSM, what matters in rehearsal is the amount of it that you do i.e the more you rehearse info, the more likely it will be transferred into the LTM

  However, Craik and Watkins found that his prediction is wrong- they suggest the type of rehearsal is more important

  They argue that maintenance rehearsal does not transfer info into LTM, it just maintains it in the STM

  Elaborative rehearsal is needed for long-term storage

  This occurs when you link the info to your existing knowledge, or you think about what it means

  This means that info can be transferred to LTM without prolonged rehearsal so the MSM doesnt fully explain how LTM is achieved
• MSM eval limitation contradictory research

  Contradictory research

  There's evidence to suggest that the LTM is not a unitary store

  For e.g, Tulving proposed that there are in fact 3 long term memory stores including: semantic, episodic and procedural memory