Analyse multimodale des marqueurs pragmatiques au sein du vieillissement langagier en situation de Trouble Cognitif Léger

Abstract : The present PhD thesis presents the multimodal video corpus VIntAGe (Videos to study Interactions in AGEing) with the principal aim to describe the effects of aging in Mild Cognitive Impairment situation on pragmatic and communicative skills. We take as observable variables the verbal pragmatic markers and non-verbal pragmatic markers. This approach, at the interface of the psycholinguistics, cognitive and the speech and language pathology is part of a longitudinal research process in an ecological situation. The first part of the manuscript details the scientific expertise and knowledge related to the cognitive aging, to the multimodal communication and to the clinical pragmatics (Chap 1 to 3). The second part describes our research questions and our methods step by step: (i) from the selection of the five female participants over 75 years old with initial and longitudinal psychometric tests; (ii) to the collect and the analysis of the multimodal data; (iii) to finish on the multidimensional and statistical data analysis and the interpretation of the results (Chap 4 to 5). Our general findings indicate that with aging, verbal pragmatic markers acquire an interactive function that allows people with Mild Cognitive Impairment to maintain intersubjective relationships with their interlocutor. In addition, at the non-verbal level, gestural manifestations are increasingly mobilized over time with a preference for non-verbal pragmatic markers with a referential function and an adaptative function. The studies focusing on people with Mild Cognitive Impairment require longitudinal corpora i) to understand their evolution, ii) to provide the implication of the cognitive resilience in each individual (i.e. compensation, adaptation and heterogeneity), and iii) to take advantage of these parameters as evidence for research and earlier rehabilitation. We aim to show the benefits of linguistic and interactional scientific investigation methods through cognitive impaired aging, for clinicians and family caregivers.
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Guillaume Duboisdindien. Analyse multimodale des marqueurs pragmatiques au sein du vieillissement langagier en situation de Trouble Cognitif Léger. Linguistique. Université Paris-Nanterre, 2019. Français. ⟨tel-02288120⟩

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