working memory model Flashcards
Who proposed the WMM and what did they believe?
Baddeley and Hitch - to replace STM in MSM. They believed STM was not a unitary store.
What is the WMM made up of?
central executive, visuospatial sketchpad, episodic buffer and phonological loop, and long term memory
Central executive
The head of the model, receives info from senses and passes it onto slave systems.
limited capacity.
what are the slave systems?
phonological loop and visuospatial sketchpad
phonological loop
processes auditory info. contains primary acoustic store (inner ear) and articulatory process (inner voice)
visuospatial sketchpad
processes visual and spatial info. contains visual cache and inner scribe.
episodic buffer
later added in 2000, a general store that integrates info from all other areas.
Baddeley dual task performance
(AO3- supports different slave systems)
when participants carried out verbal and visual task performance was significantly better than two visual or two verbal. -> competing for the same slave system -> shows they are seperate, and can become overwhelmed.
AO3- KF supports WMM.
Strength - KF had poor STM for auditory info, but not visual (when he read digits himself he could recall, but not when he heard them)
- suggests damage to PL but not VSS
- supports existence of seperate STM stores (PL and VSS are seperate)
AO3- KF is a case study
one individual, can’t be generalised to wider population.
AO3- types of LTM
Limitation - WMM does not detail types of LTM, only improves understanding of STM. Research by Tulving shows types of LTM so undermines WMM, still making it incomplete despite being better than the MSM.