WMM Flashcards
Key components of the working memory model
Central Executive
Phonological Loop
Visuo-spatial Sketchpad
Episodic Buffer
Function of central executive
Controls other sub-components
Involved in decision making and reasoning (higher mental processes)
Allocates resources to sub-components
Little to no storage capacity
Primary acoustic store
Linked to speech perception
Holds info for 1-2 seconds
Remembers sounds in order
Articulatory process
Linked to speech production
Capacity of 2 seconds of speech
Info from PAS is repeated in the loop to prevent decay
Visuo-spatial sketchpad
Codes and rehearses info through visualising mental pictures
Limited capacity of 3 to 4 objects
Visual cache = stores visual info about form and colour
Inner scribe = handles spatial relations
-Rehearses and transfers info in VC to the CE
Function and features of episodic buffer
Integrates info from VSSP and PL
Temporary storage system
Limited capacity = 4 chunks of info
Two way communication with LTM
Strengths of the WMM
Research supporting dual task studies - Baddeley and Hitch
Physiological evidence of different components specialising in particular tasks - Cohen et al
Limitations of the WMM
Evidence against unitary view of the central executive - EVR
Doesn’t account for all types of memory - Berz
Baddeley and Hitch research support for dual task studies
Participants were asked to complete a verbal task and a separate task in the central executive
Recall was unaffected
When same participants were asked to complete two similar tasks
Recall was affected
Physiological evidence by Cohen et al
Broca’s Area was more active when doing verbal tasks
(Linked to speech production)
Occipital lobe was more active when doing visual tasks