Facts about Alan Baddeley
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A fourth component, the episodic buffer, was added by Alan Baddeley to his working memory model in 2000 to account for the integration of information across cognitive systems.
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Baddeley's 1966 study with Conrad revealed that memory errors for written letters correlated with phonetic similarity rather than visual similarity, fundamentally establishing acoustic coding as central to short-term memory.
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Baddeley's experiments in the 1960s documented how participants could recall digit sequences better when phonetically dissimilar rather than similar in sound, establishing the phonological similarity effect as evidence for acoustic coding in memory.
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Baddeley's collaboration with Graham Hitch produced the multicomponent working memory model that displaced the earlier unitary short-term memory concept dominant in cognitive psychology before 1974.
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Baddeley's early career studying memory in deep-sea divers during the 1960s revealed how nitrogen narcosis impaired working memory performance at extreme depths.
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Baddeley's 2007 textbook Working Memory, Thought, and Action synthesized three decades of empirical research into a comprehensive framework that became foundational for understanding cognitive control in complex tasks.
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During the 1990s, Baddeley's research with collaborators at Bristol University demonstrated that the central executive component of working memory could be further subdivided into task-switching and inhibition functions.
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Over 40 years at the University of York, Alan Baddeley conducted longitudinal studies demonstrating how working memory capacity remains relatively stable across the adult lifespan despite age-related cognitive changes.
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Baddeley's working memory model, refined throughout the 1980s and 1990s, expanded the phonological loop concept to include a visuospatial sketchpad and central executive system for processing multiple types of information simultaneously.
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In 2003, Alan Baddeley received the British Psychological Society's Award for Distinguished Contributions to Professional Psychology after five decades of research on memory.
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The phonological loop model proposed by Alan Baddeley and Graham Hitch in 1974 fundamentally changed understanding of how humans temporarily store verbal information.