The working model memory consists of 4 main parts: including the central executive, phonological loop, and visuospatial sketchpad and episodic buffer - along with rehearsal mechanisms.
The central executive is considered the most important of the working memory as it controls attention and coordinates the actions of the other components. Although it has a limited capacity, it can briefly store information. It can store information in any sense modality.
The phonological loop has two parts: the articulatory control system or the inner voice, and the phonological store or the inner ear. The Articulatory control system rehearses information verbally with a time-based capacity of 2 seconds. The phonological store uses a sound based code to store information, even though this information decays after approximately 2 seconds (unless rehearsed through the articulatory control system). It receives its input directly from the ears or from your long-term memory.
The visuospatial sketchpad manipulates information that we see and stores it from the eyes or long term memory. For example, imagining an object and picturing it moving, like a car.
The episodic buffer’s purpose is to fix together all information from the other components of working memory with information about time and order.
Strengths of the working model memory could be that it is high in face validity as it fits in with everyday experience of manipulating information when solving problems - but with a short-term memory as a dynamic process, rather than a still store. An example could be that Baddeley 1997 suggests that counting the number of windows in your house mentally shows the operations of working memory. Most of the time, a person would imagine each room one at a time, which forms a mental image of each window (using the visuospatial sketchpad). They will then use the phonological loop b counting, to rehearse the numbers, which will be coordinated by the central executive. Also, because the...