Inter-individual variability in discourse informativeness in elderly populations.

Details

Serval ID
serval:BIB_5D43EDC0A936
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Inter-individual variability in discourse informativeness in elderly populations.
Journal
Clinical linguistics & phonetics
Author(s)
Pistono A., Pariente J., Bézy C., Pastor J., Tran T.M., Renard A., Fossard M., Nespoulous J.L., Jucla M.
ISSN
1464-5076 (Electronic)
ISSN-L
0269-9206
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
31
Number
5
Pages
391-408
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
An increasing number of studies focus on discourse production in patients with neurodegenerative diseases and underline its clinical usefulness. However, if this is to be used as a clinical tool, one needs to consider how normal discourse varies within cognitively unimpaired elderly populations. In the current study, the aim has been to investigate discourse macrolinguistic variability. For this, 123 participants aged between 55 and 84 were recruited. A cluster analysis of their discourse macrolinguistic features was conducted. Then, cluster characterisation based on socio-demographic and linguistic performance was tested (fluency, naming, syntax and spelling). This method aims to identify various profiles of speaker and informativeness and then see if inter-individual variability may be related to socio-demographic and/or linguistic aspects. Four clusters of informativeness were found but no socio-demographic features appeared significant. The fourth cluster, defined as 'off topic', had lower performance during linguistic tasks than others and thus the boundary between normality and pathology should be questioned.

Keywords
Aged, Aged, 80 and over, Aging/physiology, Cognition, Female, Humans, Linguistics, Male, Middle Aged, Narration, Speech/physiology, Cluster analysis, cognition, discourse analysis, inter-individual variability, narrative
Pubmed
Web of science
Create date
25/04/2017 17:02
Last modification date
20/08/2019 14:15
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