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Performance of Alzheimer's disease patients in judging word relatedness

Published online by Cambridge University Press:  01 November 1999

KATHRYN A. BAYLES ,
CHERYL K. TOMOEDA  and
ROBYN F. CRUZ
KATHRYN A. BAYLES
Affiliation:
Department of Speech and Hearing Sciences, National Center for Neurogenic Communication Disorders, University of Arizona
CHERYL K. TOMOEDA
Affiliation:
National Center for Neurogenic Communication Disorders, University of Arizona
ROBYN F. CRUZ
Affiliation:
National Center for Neurogenic Communication Disorders, University of Arizona
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Abstract

Sixty individuals with probable Alzheimer's disease (AD) and 48 normal elders were given a task in which they had to judge the relatedness of concepts as a means of evaluating semantic memory. Very mild AD patients performed similarly to normal elders. Mild AD patients were significantly inferior in performance to normals but the pattern of their performance did not suggest a loss of conceptual knowledge. Moderate AD patients were significantly inferior in performance to mild AD patients, and 8 moderate AD patients (compared to 1 mild AD patient) were unable to do the task. The pattern of performance of moderate patients suggests that conceptual knowledge may degrade and ultimately be lost. (JINS, 1999, 5, 668–675.)

Keywords

Alzheimer's diseaseSemantic memoryConceptual knowledgeSemantic relations
Type
THEMATIC ARTICLES
Information
Journal of the International Neuropsychological Society , Volume 5 , Issue 7 , November 1999 , pp. 668 - 675
Copyright
© 1999 The International Neuropsychological Society

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