The episodic buffer and learning in early Alzheimer's disease

  • Germano C
  • Kinsella G
  • Storey E
 et al. 
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Abstract

The role of working memory, specifically the episodic buffer, in the learning performance of patients with very mild (n = 18) and mild (n = 12) Alzheimer's disease as compared with healthy older adults (n = 29) was investigated using a series of word-lists that were manipulated (clustered, unclustered) to explore the impact of strategic organizational skills under varying attention conditions (full, divided). Results indicated that the learning performance for all three groups under full attention was better than that under divided attention, but only for the clustered word-lists. Moreover, in contrast to the mild Alzheimer's disease group, both the healthy older controls and the very mild Alzheimer's disease group demonstrated better performance on clustered word-lists than on unclustered lists, suggesting active strategic organizational skills, even at delayed free recall. The overall pattern of results indicates a staging of working-memory impairment in early Alzheimer's disease. [ABSTRACT FROM AUTHOR]\rCopyright of Journal of Clinical & Experimental Neuropsychology is the property of Psychology Press (UK) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Author-supplied keywords

  • ALZHEIMER'S disease -- Patients
  • LEARNING
  • OLDER people -- Diseases
  • PRESENILE dementia
  • SHORT-term memory

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Authors

  • Carmela Germano

  • Glynda J Kinsella

  • Elsdon Storey

  • Ben Ong

  • David Ames

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