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Alzheimer prediction from connected speech extracts : assessment of generalisation to new data
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A longitudinal study of narrative discourse in post-stroke aphasia
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L’utilisation du discours spontané pour le diagnostic précoce de la maladie d’Alzheimer
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Marqueurs discursifs de neurodégénérescence liée à la pathologie Alzheimer
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Connected speech markers of amyloid burden in primary progressive aphasia
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Predicting Early Post-stroke Aphasia Outcome From Initial Aphasia Severity
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Word-finding in confrontation naming and picture descriptions produced by individuals with early post-stroke aphasia
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Deformation-based shape analysis of the hippocampus in the semantic variant of primary progressive aphasia and Alzheimer’s disease
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Assessing early white matter predictors of syntactic abilities in post-stroke aphasia using HARDI-based tractography
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Predicting early post-stroke aphasia outcome from initial aphasia severity
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Task-induced functional connectivity of picture naming in healthy aging : the impacts of age and task complexity
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The importance of thematic informativeness in narrative discourse recovery in acute post-stroke aphasia
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Cross-sectional analysis of picture descriptions of healthy young and older adults
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Abstract:
It is poorly understood whether and how normal aging affects different aspects of connected speech production, such as fluency, informativity, efficiency, and vocabulary use. The present study crosssectionally investigates the effects of age on a broad variety of language production measures, using connected speech samples elicited by the two most frequently used picture description tasks. Twenty-six young (20-25 y.o.) and twenty-two older participants (55-90 y.o.) were included in this study. Speech samples were transcribed using the CLAN program and eight measures were extracted. Our results indicate that, in a picture description task, older adults produce more disruptions to fluency, but that lexical diversity, informativity, and efficiency of speech remain unaffected by age. The use of less frequent words by older adults might reflect a larger vocabulary size. These findings have implications for future studies assessing changes in connected speech production, in both healthy and clinical populations. ; Le vieillissement normal module certaines habiletés cognitives, mais on ne sait pas si, et de quelle manière, différents aspects de la production du discours continu, tels que la fluence, l’informativité, l’efficacité et l’utilisation du vocabulaire, sont affectés. La présente étude transversale examine les effets de l’âge sur plusieurs mesures langagières à partir d’échantillons de discours continu suscités par les deux tâches de description d’image les plus utilisées. Vingt-six jeunes (20-25 ans) et vingt-deux participants âgés (55-90 ans) ont été recrutés. Les échantillons ont été transcrits via le programme CLAN et huit mesures ont été extraites. Nos résultats indiquent que les adultes plus âgés produisent plus de bris de fluidité verbale, mais que la diversité lexicale, l’informativité et l’efficacité du langage ne sont pas affectées par l’âge. L’usage de mots moins fréquents par les adultes plus âgés pourrait refléter un vocabulaire plus étendu. Ces résultats ont des implications pour les études futures portant sur les changements dans la production de discours continu chez les populations saines et cliniques.
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Keyword:
Connected speech; Discours continu; Language production; Manque du mot; Normal aging; Picture description task; Production langagière; Tâche de description d’images; Vieillissement normal; Word-finding difficulties
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URL: http://hdl.handle.net/1866/25827 https://doi.org/10.46278/j.ncacn.20190714
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Differential language network functional connectivity alterations in Alzheimer's disease and the semantic variant of primary progressive aphasia
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Visual and auditory perceptual strength norms for 3,596 French nouns and their relationship with other psycholinguistic variables
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Aging and language : maintenance of morphological representations in older adults
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L'atrophie de l'hippocampe dans la maladie d'Alzheimer et la variante sémantique de l'aphasie primaire progressive
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L'impact des variables sémantiques sur le traitement des mots
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The role of the hippocampus in the semantic variant of primary progressive aphasia : a resting‐state fcMRI study
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Test-retest reliability of diffusion measures extracted along white matter language fiber bundles using HARDI-based tractography
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