stm and ltm

• capacity?


  concerns how much data can be held in a memory store
• the capacity of stm?

  assessed using digit span. joseph jacobs used this technique. average digit span was found to be 9.3
• the magic number 7±2?

  george miller wrote an article called the magic number seven plus or minus two. the span of immediate memory is about seven items.
• duration of stm?

  short duration unless items are repeated over and over again
• duration of ltm?

  potentially unlimited
• coding?

  information must be ‘written’ in memory in some form
• acoustic coding?

  things that sound similar - cat, cab, can. these are easier to remember in short-term memory
• semantic coding?

  things that relate to each other - great, large, big. these are easier to remember in long-term memory