Document Detail


Syntactic and lexical context of pauses and hesitations in the discourse of Alzheimer patients and healthy elderly subjects.
MedLine Citation:
PMID:  21080826     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Psycholinguistic studies dealing with Alzheimer's disease (AD) commonly consider verbal aspects of language. In this article, we investigated both verbal and non-verbal aspects of speech production in AD. We used pauses and hesitations as markers of planning difficulties and hypothesized that AD patients show different patterns in the process of discourse production. We compared the distribution, the duration and the frequency of speech dysfluencies in the spontaneous discourse of 20 AD patients with 20 age, gender and socio-economically matched healthy peers. We found that patients and controls differ along several lines: patients' discourse displays more frequent silent pauses, which occur more often outside syntactic boundaries and are followed by more frequent words. Overall patients show more lexical retrieval and planning difficulties, but where controls signal their planning difficulties using filled pauses, AD patients do not.
Authors:
Frederique Gayraud; Hye-Ran Lee; Melissa Barkat-Defradas
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Publication Detail:
Type:  Journal Article     Date:  2010-11-16
Journal Detail:
Title:  Clinical linguistics & phonetics     Volume:  25     ISSN:  1464-5076     ISO Abbreviation:  Clin Linguist Phon     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802622     Medline TA:  Clin Linguist Phon     Country:  England    
Other Details:
Languages:  eng     Pagination:  198-209     Citation Subset:  IM    
Affiliation:
Department of Linguistics, Laboratoire Dynamique du Langage, ISH, Université Lyon, Lyon, France.
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