Related Experiment Video
Updated: May 23, 2025

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
Relationship between language features extracted through NLP and clinically diagnosed Alzheimer's disease and mild
Nataliia Casnochova Zozuk1, Dasa Munkova1, Livia Kelebercova1
1Department of Informatics Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra Nitra Slovakia.
Background:
Dementia, particularly Alzheimer's disease (AD), affects language, especially lexical-semantic processing. Discourse analysis using NLP methods can aid early detection, but research in inflectional languages like Slovak is limited.
Methods:
Speech samples from 216 Slovak-speaking participants (64 AD, 44 MCI, 108 HC) were collected using a picture description task and analyzed for lexical complexity using 15 NLP-based measures.
Results:
Several lexical complexity measures, including GTTR, UBER, SICHEL, MTLD, HDD and others, significantly differentiated AD or MCI from healthy controls. Some measures (UBER, YULEI, HONORE) also distinguished between AD and MCI.
Conclusion:
Lexical complexity metrics can serve as non-invasive linguistic indicators of neurodegenerative diseases, demonstrating diagnostic relevance for early detection of AD and MCI in Slovak.
Highlights:
Lexical complexity metrics effectively differentiate between healthy controls, MCI, and AD in Slovak speakers.Measures such as GTTR, UBER, and HONOR exhibit strong diagnostic potential for neurodegenerative diseases.Education significantly influences linguistic deficits, with higher education correlating to reduced cognitive decline.Findings underscore the importance of studying minority languages for advancing AD and MCI diagnostics.
More Related Videos
09:47Author Spotlight: Advancing Alzheimer's Research – Exploring Early Detection and Multi-Omics Approaches
Published on: December 15, 2023
08:43Application of Granger Causality Analysis of the Directed Functional Connection in Alzheimer's Disease and Mild Cognitive Impairment
Published on: August 7, 2017
Related Concept Videos
Language and Cognition
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
Alzheimer's Disease: Treatment
Dementia
The progression of dementia is generally gradual....
Neural Regulation