WMM Studys

Question 1

WMM strength

Answer 1

Shallice and Warrington on patient KF
Who suffered from amnesia

Found KFs recall in STM for digits was poor when read aloud in contrast to visually seeing digits

Suggesting there must be diffrent stored for STM

One to process visual visual information.

And one to process auditory

PL was damaged

VSS was intact

Question 2

WMM strength

Answer 2

Studies of dual task performance support STM have limited capacity

Found PPTs had more difficulty performing 2 visual tasks at the same time than performing one of the visual tasks with verbal task

Supporting WMM because it suggests that both visual tasks are competing for limited capacity for limited capacity of the same slave system (VSS)

Whereas doing visual+verbal task simultaneously they are delegated to seperate slave systems (vss and ps) as there is no competition for capacity

Increasing credibility of WMM

Question 3

WMM weakness

Answer 3

Case study to support is flawed

Low population validity as it a case study of only one person

Difficult to generalise to wider population as their STM may operate differently

Limiting the support that the research provides for WMM