Multi Store Model of Memory

• What does the MSM assume about memory stores?

  There are 3 unitary stores.
• How is information transferred in the MSM?

  In a linear sequence between stores.
• What are the characteristics of the sensory register?

  • Modality specific
  • Very large capacity
  • Duration less than half a second
  • Information enters via senses
  • Forgotten without attention
• What is the capacity of short-term memory (STM)?

  7 +/- 2 chunks.
• What is the duration of short-term memory (STM)?

  18-30 seconds.
• How is information retrieved from STM?

  Via maintenance rehearsal.
• What did Peterson and Peterson's study suggest about STM?

  STM has a limited capacity and decays.
• What is a weakness of Peterson and Peterson's study?

  It lacks task validity with nonsense trigrams.
• What does patient KF's case suggest about STM?

  There are different types of STM stores.
• What are the characteristics of long-term memory (LTM)?

  • Lifetime duration
  • Potentially unlimited capacity
  • Forgotten due to decay or interference
  • Retrieved with semantic/temporal search
• What is the "tip of the tongue" phenomenon?

  Knowing something but unable to recall it.
• What did Bahrick's study find about LTM accuracy over time?

  90% accuracy after 34 years for faces.
• What is a weakness of the MSM regarding LTM?

  It reduces memory to three components.
• How does the MSM oversimplify memory processes?

  It ignores long-term memories without rehearsal.
• What are the applications of the primacy and recency effects?

  • Primacy effect: better recall of first items
  • Recency effect: better recall of last items
  • Used in court cases for witness placement
• What does the working memory model propose?

  It splits short/long term memory stores further.
• How does patient KF's case support the working memory model?

  He formed visual memories but not verbal ones.