ReviewBehavioral sciences (Basel, Switzerland)2026
Assessment of Language Impairments Towards Identifying Markers for Early Diagnosis of Pathological Cognitive Decline.
Review in Behavioral sciences (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A major challenge in research on cognitive decline and dementia is the identification of at-risk populations in the preclinical phase. In this context, there is growing interest in language markers as early indicators of cognitive impairment.
objectivesThis study aims to identify early linguistic markers that may facilitate the detection of individuals at risk of cognitive decline and dementia during the preclinical stage. Additionally, it seeks to evaluate the effectiveness of various assessment techniques and instruments for detecting such language impairments.
methodsA systematic review was conducted in accordance with the PRISMA guidelines, encompassing studies published between 2014 and 2025. A total of 109 articles were included in the qualitative synthesis.
resultsThe findings indicate that syntactic-structural features-particularly complexity, discourse coherence, and global organization-together with acoustic parameters such as pause duration, exhibit a higher accuracy and predictive value for the early diagnosis of cognitive decline and its progression to dementia. Furthermore, narrative-based tasks analyzed through automated methods demonstrate significant advantages for the assessment of language impairments.
conclusionsThe analysis of language markers-particularly through the examination of syntactic complexity, acoustic features, and automated narrative assessments-represents a promising and effective approach for the early identification of cognitive impairment and the prediction of subsequent dementia onset.
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