working memory model ao1 Flashcards
who and when therorised the working memory model (wwm)
baddely an hitch 1974
components of wmm
central executive (ce)
phonological loop - phonological store + articulatory loop
visuo spatial sketchpad - visual cache + inner scribe
episodic buffer
what is the ce
actively delegates tasks to two slave system (vss and pl)
supervisory role which directs attention to particular tasks
ce has limited capacity instead processes info from sensory system (senses)
Controls slave systems
what is the pl
deals w auditory and verbal
Limited capacity
what is ps
holds heard words
Inner ear
what is al
duration of 2 sec
allows for maintence reh
Inner voice
explain word length effect
capacity of phonological store
det by length of time it takes to say words so polysyllabic words harder remeber and store reh of word is longer than 2 sec (duratio of al)
whats is vss
stores visual and spatial info
Limited capacity
what is visual cache
stores visual data
what is inner scribe
holds info ab where objects are eg their spacial arrangment colour and shape
what is wmm
breaking down stm into systems
what and when is episodic buffer
later added by baddley 2000
bc all other componets had limited capacity so to start to form a new mem buffer will process info from all components and intergrate in into ltm
what did bungee at al find and when - strength
2000
mri scan used to see which parts of brain most active when ppts were performing one task or 2 tasks at the same time
saw that 2 tasks at the same time lead to increased demand for attention
thus supporting existence of componets of stm as seen by wmm
