WORKING MEMORY a system for temporarily storing/holding information and managing/manipulating the information required to carry out complex cognitive tasks such as learning, reasoning and comprehension
Working memory model baddeley and hitch (1974)
Central executive -
Drives the whole system acts as the supervisor monitoring incoming information, makes decisions and allocates slave subs-systems to tasks (is an attentional process)
Phonological loop; PL
Deals with spoken and written material split into the phonological store and articulatory process (maintenance rehearsal) written works must be converted to spoken code before processed
Articulatory process- inner voice
Phonological store- inner ear
Viso-spatial sketchpad VSS
Stores and processes visual and spatial information used for navigation
(In 2000) extra component was added to model
Episodic buffer:
responsible for linking/binding together information from all other elements of working memory (PL & VSS) with information relating to time and order. so things occur in continuing sequence like book or movie.
Buffer- temporarily hold information
Episodic - integrated chunks of information
LH FARAH 1988
Road accident causes LH to have poor performance when asked to remember colour and shapes
But performed well at tasks relating to spatial information
colour + shape is VSS (viso-spatial sketchpad
Spatial information is also VSS?
This challenges WMM
Logie 1995 subdivided VSS
Robert logie subdivided VSS into two components in 1995
Visual cache:
Sometimes referred to as inner eye, this part of VSS stores information about form and colour ie images
Inner scribe:
This part of VSS stores spatial and movement information, it records the arrangement of objects in visual field and allows us to walk around without bumping into things. It is used to rehearse visual information from the visual cache.