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Eye-voice span in adults with mild cognitive impairment (MCI) and healthy controls.

Poster
Authors Kristina Lundholm Fors
Kathleen Fraser
Dimitrios Kokkinakis
Published in Book of Abstracts 10th CPLOL Congress 10-12 May 2018, Cascais, Portugal / editor : Trinite, Baiba
Publication year 2018
Published at Department of Swedish
Centre for Ageing and Health (Agecap)
Language en
Links www.cplolcongress2018.eu/en/content...
Keywords elderly language disorders, cognitive impairments, dementia, screening
Subject categories Language Technology (Computational Linguistics), Logopedics and phoniatrics

Abstract

Objectives: This study is part of a larger project focused on developing new techniques for identification of early linguistic and extra-linguistic signs of cognitive impairment, with the overall goal of identifying dementia in the preclinical stage. In a previous study, we found that eye movements during reading can be used to distinguish between subjects with mild cognitive impairment (MCI) and healthy controls with up to 86% accuracy. In this study, we are investigating the process of reading aloud, by exploring the eye-voice span in subjects with and without cognitive impairment. The aim of the study is to identify differences in the reading processes and evaluate whether these differences can be used to discriminate between the two groups. Methods: The eye-voice span is a measurement of the temporal and spatial organization between the eye and the voice, and is affected by for example working memory and automaticity, but also by the familiarity and length of words. In previous work, differences between eye movements when reading in healthy controls and subjects with cognitive impairments have been identified, and it has been shown that subjects with Alzheimer’s disease show impairments when reading aloud, specifically with regards to speech and articulation rate. Results: We present a quantitative and qualitative analysis of the reading process in the subjects, focusing both on general measures of eye-voice span, but also specifically on instances of hesitation and mistakes in the speech, and the correlated eye movements. Conclusions/Take home message: Early detection of dementia is important for a number of reasons, such as giving the person access to interventions and medications, and allowing the individual and families time to prepare. By expanding the knowledge about reading processes in subjects with MCI, we are adding to the potential of using reading analysis as an avenue of detecting early signs of dementia.

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