Alan Baddeley and Graham Hitch proposed a model of working memory in 1974, in an attempt to describe a more accurate model of short-term memory.
Baddeley & Hitch proposed their tripartite 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 and has become the dominant view in the field of working memory. However, alternative models are developing (see working memory) 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 supervisory system and controls the flow of information from and to its slave systems: the phonological loop and the visuo-spatial sketchpad. The slave systems are short-term storage systems dedicated to a content domain (verbal and visuo-spatial, respectively). 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.
(from http://en.wikipedia.org/wiki/Baddeley\\\'s_model_of_working_memory)
Definition contributed by Anonymous
Baddeley & Hitch proposed their tripartite 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 and has become the dominant view in the field of working memory. However, alternative models are developing (see working memory) 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 supervisory system and controls the flow of information from and to its slave systems: the phonological loop and the visuo-spatial sketchpad. The slave systems are short-term storage systems dedicated to a content domain (verbal and visuo-spatial, respectively). 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.
(from http://en.wikipedia.org/wiki/Baddeley\\\'s_model_of_working_memory)
Definition contributed by Anonymous
Constituent Assertions
- phonological assembly is a kind of phonological processing
- phonological loop is measured by the contrast of suppression - control (articulatory suppression effect) in the articulatory suppression task
- central executive is measured by the contrast of dual minus control in the dual-task paradigm
- central executive is a part of working memory
- visual working memory is a kind of working memory
- spatial working memory is a kind of working memory
- visuospatial sketch pad is a part of spatial working memory
- visuospatial sketch pad is a part of visual working memory
- episodic buffer is a part of working memory
- auditory working memory is a kind of working memory
- phonological loop is a part of auditory working memory
- phonological loop is a kind of rehearsal loop
Term BIBLIOGRAPHY
Working memory: theories, models, and controversies.
Baddeley A
Annual review of psychology (Annu Rev Psychol)
2012 Jan 10
Baddeley A
Annual review of psychology (Annu Rev Psychol)
2012 Jan 10
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