In this paper, we describe the working memory model proposed by Baddeley and Hitch (Smith & Kosslyn, 1974, 2007) as an answer to Atkinson and Shiffrins (Smith, 2007) multistore model. According to Baddely and Hitch, the multistore model can not account for most of the complexity of human memory and can not treat it as too simple. They believe that short term storage devices must have more parts than flexible storage devices, as suggested by Atkinson and Sifrin (1968).
In 1974, Baddeley and Hitch proposed a "working memory model" to replace the general concept of short-term memory by proactively maintaining short-term memory information. In this model, the working memory consists of three basic stores: central execution, voice loop, and visual space canvas. In 2000, this model extended the multimodal plot buffer (Baddeley 's working memory model). Story buffers are dedicated to the integration of cross-domain link information to form visual, spatial and linguistic information as well as chronological order (eg memory for stories or movie scenes). Suppose the plot buffer is also related to long-term memory and semantics.
In 1974, Badley and Sage proposed another short - term memory theory: Badley 's working memory model. According to this theory short-term memory is divided into different sub-systems of different types of input items, there is an execution control to monitor which items go in and out of these systems. Subordinate systems include audio loops, visual space artboards, and plot buffers (added later by Baddeley). As Baddeley studied, long-term memory stores semantically encoded information. In the vision, information needs to be entered into working memory in order to be stored in long-term memory. This can be demonstrated by the fact that the rate at which information is stored in long-term memory depends on the amount of information each step can fit into visual working memory. In other words, for some stimuli, the greater the ability to exercise memory, the more quickly these materials will learn.