![]() The phonological loop stores verbal content, whereas the visuo-spatial sketchpad caters to visuo-spatial data. The original model of Baddeley & Hitch was composed of three main components: the central executive which acts as a supervisory system and controls the flow of information from and to its slave systems: the phonological loop and the visuo-spatial sketchpad. However, alternative models are developing, providing a different perspective on the working memory system. This model is later expanded upon by Baddeley and other co-workers to add a fourth component, and has become the dominant view in the field of working memory. īaddeley & Hitch proposed their three-part working memory model as an alternative to the short-term store in Atkinson & Shiffrin's 'multi-store' memory model (1968). Working memory splits primary memory into multiple components, rather than considering it to be a single, unified construct. The central executive decides whether there's room for the lecture material and/or the professor's experience having kidney stones, or both, and whether they're worthy of being imprinted in the long-term memory.Model of human memory Baddeley and Hitch's model of working memoryīaddeley's model of working memory is a model of human memory proposed by Alan Baddeley and Graham Hitch in 1974, in an attempt to present a more accurate model of primary memory (often referred to as short-term memory). The other key thing about working memory is that it gets binned in either working memory or long-term memory by the central executive. Note the similarities between the two concepts and the difference: visual vs. This, along with the lecture material, gets temporarily stored in the PL loop.
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