strengths

• real life application of phonological loop


  -watching TV and someone starts talking to you

  -hard to listen to both at the same time

  -LIMITED CAPACITY of phonological loop
• real life application of visuo-spatial sketchpad

  -mental arithmetic to add numbers

  -capacity is 3-4 objects so long sums become very difficult
• strengths of WMM


  -there's evidence to show the limited capacity

  (2 tasks from same system)
• supporting study of WMM

  verbal reasoning task
• task 1 of verbal reasoning task


  -given AB or BA with statement describing its order

  -say true or false
• task 2 of verbal reasoning task

  -complete one of three 'tasks' at same time as task 1

  A = repeat 'the the the' over & over

  B = say random digits out loud

  C = no extra task
• what part of the WMM do the tasks occupy

  task 1 = central executive

  task 2 = A - articulatory loop

  B - central executive & articulatory loop

  C - no task
• verbal reasoning task - AIM


  -use dual task performance activities which use same / different components of WMM to see if there's evidence for model
• verbal reasoning task - PROCEDURE 


  -task 1 : P given screen with a letter (A or B) then another letter (B or A)

  : P state whether statement referring to order of letters is true/false as quick as possible

  -task 1 combined with another task
• verbal reasoning task - FINDINGS 


  -task 1 combined with 'the the the' or control version , performance wasn't affected

  -when combined with random numbers (B) , speed dropped significantly
• verbal reasoning task - CONCLUSION


  -task 1 and random numbers use same component of memory causing difficulty
• supporting evidence - brain scans 


  -brain imaging studies suggest tasks needing different parts of WMM use different parts of brain

  -completing visual tasks uses different active parts of brain to verbal
• supporting evidence - word length effect

  -average correct recall after 5 seconds shows short words much better to remember

  = role of phonological loop

  = tendency to immediately recall short words

  =WMM explains by saying articulatory loop has limited time capacity

  = short words take less time to say, we can remember more of them