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Verb naming and comprehension in patients with Alzheimer's Disease: Focusing on instrumentality of action verbs

Title
Verb naming and comprehension in patients with Alzheimer's Disease: Focusing on instrumentality of action verbs
Authors
Shin S.Kwon M.Lee J.-H.Sim H.S.
Ewha Authors
심현섭
SCOPUS Author ID
심현섭scopus
Issue Date
2017
Journal Title
Communication Sciences and Disorders
ISSN
2288-1328JCR Link
Citation
vol. 22, no. 2, pp. 190 - 204
Keywords
Alzheimer's diseaseInstrumentalitySemantic memoryVerb comprehensionVerb naming
Publisher
Korean Academy of Speech-Language Pathology and Audiology
Indexed
SCOPUS scopus
Abstract
Objectives: The present study aimed to elucidate the nature of semantic impairment in action verbs focusing on instrumentality, as revealed in a verb naming and a comprehension tasks completed by healthy elderly and patients with Alzheimer's disease (AD). Methods: Twelve patients with mild and moderate AD and 12 healthy elderly participated in the study. Forty action verbs from 20 instrument verbs and 20 non-instrument verbs were selected for both confrontation naming and word-picture matching tasks. Task effect as well as semantic effect of instrument verbs was analyzed by using two-way mixed ANOVA and post-hoc analyses. Results: Verb naming and comprehension abilities in patients with AD were significantly poorer than healthy elderly. Unlike the healthy elderly, AD patients showed significantly lower naming scores for instrument verbs than for non-instrument verbs. Meanwhile, no instrumentality effect was found in the word-picture matching task for either group. Conclusion: These results confirm previous studies that report verb naming and comprehension deficits in patients with AD, and extend the finding to the semantic category of instrument verbs. Naming deficits in instrument verbs seem to be related to the loss of the semantic feature relationship between verbs and their corresponding nouns. The feature-based framework in semantic memory is discussed further. © 2017 Korean Academy of Speech-Language Pathology and Audiology.
DOI
10.12963/csd.17400
Appears in Collections:
사범대학 > 언어병리학과 > Journal papers
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