It is concerned with the ‘mental space’ that is active when, for example, working on an arithmetic problem or playing chess or comprehendi9ng language etc.
Central Executive (CE) allocates subsystems
Supervisory role - monitors incoming data, directs attention and allocates subsystems to tasks.
It has a very limited storage capacity.
Phonological loop (PL) consists of a phonological store and an articulatory process
PL deals with auditory information and preserves the order in which the informationarrives. It is subdivided into:
Phonological stores: stores the words you hear.
Articulatory process: allows maintenance rehearsal (repeating sounds to keep them in WM while they are needed).
Visuo-spatial; sketchpad (VSS)
Stores visual and/or spatial information when required (e.g recalling how many windows your house has).
Logie (1995) subdivided the VSS into:
Visual cache: stors vidual data.
Inner scribe: records arrangement of objects in visual field.
Episodic buffer (EB), temporary change
Added in 2000. It is a temporary store for information.
Integrates visual, spatial, and verbal information from other stores.
Maintains sense of time sequencing - recording events (episodes) that are happening.
