Journal article
The Disparate Effects of Alzheimer's Disease and Huntington's Disease on Semantic Memory
Neuropsychology, Vol.13(3), pp.381-388
07/1999
DOI: 10.1037/0894-4105.13.3.381
PMID: 10447299
Abstract
Alzheimer's disease (AD) and Huntington's disease (HD)
impair performance on semantic memory tasks, but researchers
disagree on whether AD and HD cause these impairments in the same
manner. According to one view, AD disrupts the storage of semantic
memories, whereas HD disrupts the retrieval of semantic memories.
Dissenters argue that AD, like HD, disrupts retrieval. In this
study, participants generated category exemplars (e.g., kinds of
fruits) for 1 min, and response latencies were examined. Relative to
healthy controls, the 12 AD patients produced a larger proportion of
responses earlier in the recall period, consistent with the view
that AD patients quickly exhaust their limited supply of items in
storage. By contrast, the 12 HD patients produced a larger
proportion of their responses late in the recall period, consistent
with the view that HD slows retrieval.
Details
- Title: Subtitle
- The Disparate Effects of Alzheimer's Disease and Huntington's Disease on Semantic Memory
- Creators
- Doug Rohrer - Department of Psychology, University of South FloridaDavid P Salmon - Department of Neuroscience, University of California, San DiegoJohn T Wixted - Department of Psychology, University of California, San DiegoJane S Paulsen - Department of Psychiatry, University of Iowa
- Resource Type
- Journal article
- Publication Details
- Neuropsychology, Vol.13(3), pp.381-388
- Publisher
- American Psychological Association
- DOI
- 10.1037/0894-4105.13.3.381
- PMID
- 10447299
- ISSN
- 0894-4105
- eISSN
- 1931-1559
- Language
- English
- Date published
- 07/1999
- Academic Unit
- Psychiatry; Psychological and Brain Sciences
- Record Identifier
- 9984083243402771
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