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- Vol 1 RE: Chapter 4, App B
multicomponent working memorytemporary storageattentional controldual-task performanceverbal resourcesvisuospatial resourcesBook chapter Evidence summaryAt a glance
Baddeley and Hitch challenge the idea that short-term memory is a single passive store. Through a programme of dual-task experiments, participants carried a concurrent digit load while completing reasoning, comprehension, and learning tasks.
Key ideas
Performance declined gradually rather than collapsing when the nominal short-term capacity was filled, suggesting that temporary storage and processing rely on multiple components. The authors propose a flexible working-memory system with an attentional control mechanism and subsidiary verbal and visual-spatial resources. This architecture could support complex cognition while maintaining small amounts of information. Later work refined the components and terminology, but this chapter established the multicomponent research programme.
Why it matters
For educators, it explains why combining tasks that compete for the same temporary resources can be particularly disruptive and why external representations can reduce avoidable memory demands.
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Edition abbreviations
- TE
- Teacher Edition
- PE
- Practice Edition
- RE
- Research Edition
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