working memory model Flashcards
what are the four features of WMM
the central executive
the phonological loop
visual spatial sketch pad
episodic buffer
outline features of central executive
controls other slave components
limited to no capacity
flexible coding
outline features of the phonological loop
limited 2 seconds worth of what u can say
acoustically coded
features of primary acoustic store and articulatory process
outline features of the visuo spatial sketchpad
limited 3-4 objects capacity
visually coded
features of inner scribe and visual cache
outline features of episodic buffer
brings together different types of info from PL and VSSP
temporary storage
controlled by CE
retrieving info from LTM
Limited 4 chunks capacity
coded across different slave components
evaluation of WMM
Research support for existence of VSSP
studies of dual task performance
more difficulty describing two visual tasks - tracking a light and describing the F
then doing verbal and visual at the same time - no competition
suggests using 2 separate components exceed limited capacity doing 2
evaluation of WMM
research support from PET scans
physiological evidence
brain activity high in brocas area for verbal tasks
where regions of occipital lobe activated for VSSP
strong neurocognitive support being different components
evaluation of WMM
The CE is oversimplified
case study of EVR contradicts idea of unitary CE
tumour removed
well on tests reasoning CE was intact
poor decision skills
suggesting was damaged
suggests several components to CE rather than one
evaluation of WMM
WMM does not account for all types of memory
Berz - criticised failing to account for musical memory
able to listen to instrumental music without impairing performance on other acoustic tasks
listening to music should occupy PL capacity making difficult to do other tasks
not the case.
suggests WMM does not give us complete picture of how different types of memory are processed
