Category and attribute knowledge deterioration in Alzheimer's Disease

Persistent Link:
http://hdl.handle.net/10150/278124
Title:
Category and attribute knowledge deterioration in Alzheimer's Disease
Author:
Cox, Diane Marie, 1968-
Issue Date:
1992
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Changes associated with Alzheimer's Disease (AD) in the association cortices of temporal, occipital, and parietal lobes of the brain, result in significantly impaired performance of AD subjects on tests of semantic memory. The most prevalent theory regarding the deterioration of semantic memory is that it is a bottom-up process. That is, the knowledge of attributes becomes lost or inaccessible prior to the knowledge of categories. Previous research of this theory has resulted in conflicting results. The purpose of this study was to test further the theory, while taking into account task difficulty. Thirty probable AD and 28 normal elderly subjects were administered tasks of attribute and categorical knowledge. Results revealed significant differences in performance as a result of task difficulty. These results call into question the methodology previously used to assess the bottom-up theory, as well as the ability to use attribute and categorical knowledge separately.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Health Sciences, Speech Pathology.; Psychology, Physiological.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Bayles, Kathryn A.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleCategory and attribute knowledge deterioration in Alzheimer's Diseaseen_US
dc.creatorCox, Diane Marie, 1968-en_US
dc.contributor.authorCox, Diane Marie, 1968-en_US
dc.date.issued1992en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractChanges associated with Alzheimer's Disease (AD) in the association cortices of temporal, occipital, and parietal lobes of the brain, result in significantly impaired performance of AD subjects on tests of semantic memory. The most prevalent theory regarding the deterioration of semantic memory is that it is a bottom-up process. That is, the knowledge of attributes becomes lost or inaccessible prior to the knowledge of categories. Previous research of this theory has resulted in conflicting results. The purpose of this study was to test further the theory, while taking into account task difficulty. Thirty probable AD and 28 normal elderly subjects were administered tasks of attribute and categorical knowledge. Results revealed significant differences in performance as a result of task difficulty. These results call into question the methodology previously used to assess the bottom-up theory, as well as the ability to use attribute and categorical knowledge separately.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectHealth Sciences, Speech Pathology.en_US
dc.subjectPsychology, Physiological.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorBayles, Kathryn A.en_US
dc.identifier.proquest1348495en_US
dc.identifier.bibrecord.b27588658en_US
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