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HandWiki. Baddeley's Model of Working Memory. Encyclopedia. Available online: https://encyclopedia.pub/entry/32985 (accessed on 23 September 2026).
HandWiki. Baddeley's Model of Working Memory. Encyclopedia. Available at: https://encyclopedia.pub/entry/32985. Accessed September 23, 2026.
HandWiki. "Baddeley's Model of Working Memory" Encyclopedia, https://encyclopedia.pub/entry/32985 (accessed September 23, 2026).
HandWiki. (2022, November 04). Baddeley's Model of Working Memory. In Encyclopedia. https://encyclopedia.pub/entry/32985
HandWiki. "Baddeley's Model of Working Memory." Encyclopedia. Web. 04 November, 2022.
Baddeley's Model of Working Memory
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The content is sourced from: https://handwiki.org/wiki/Biology:Baddeley%27s_model_of_working_memory

Baddeley'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). Working memory splits primary memory into multiple components, rather than considering it to be a single, unified construct. Baddeley & 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). 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. However, alternative models are developing, providing a different perspective on the working memory system. 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. The phonological loop stores verbal content, whereas the visuo-spatial sketchpad caters to visuo-spatial data. Both the slave systems only function as short-term storage centers. In 2000, Baddeley added a third slave system to his model, the episodic buffer. Baddeley & Hitch's argument for the distinction of two domain-specific slave systems in the older model was derived from experimental findings with dual-task paradigms. Performance of two simultaneous tasks requiring the use of two separate perceptual domains (i.e. a visual and a verbal task) is nearly as efficient as performance of the tasks individually. In contrast, when a person tries to carry out two tasks simultaneously that use the same perceptual domain, performance is less efficient than when performing the tasks individually. A fourth component of Baddeley's model was added 25 years later to complement the central executive system. The third slave system was designated as episodic buffer. It is considered a limited-capacity system that provides temporary storage of information by conjoining information from the subsidiary systems, and long-term memory, into a single episodic representation.

memory model dual-task alternative models

References

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