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Updated: May 4, 2026

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
Data modelling in corpus linguistics: how low may we go?
Marjolein H van Velzen1, Luca Nanetti1, Peter P de Deyn2
1University of Groningen and Alzheimer Research Center, University Medical Center Groningen, The Netherlands.
This study introduces a novel computational method to analyze authors' linguistic richness over time. The findings reveal distinct patterns of lexical decline potentially linked to conditions like Alzheimer's Disease.
Area of Science:
- Computational Linguistics
- Neuroscience
- Literary Studies
Background:
- Corpus linguistics enables analysis of large text volumes.
- Studies have explored links between authors' linguistic decline and diseases like Alzheimer's Disease (AD).
- Numerical data alone is insufficient for interpreting literary analysis; a robust methodology is needed.
Purpose of the Study:
- To develop a robust, unifying computational approach for analyzing temporal dynamics of authors' linguistic richness.
- To model individual authors' linguistic evolution throughout their careers.
- To investigate potential correlations between linguistic changes and pathological conditions.
Main Methods:
- A computerised, individualized approach grounded in Information Theory.
- Analysis of lexical richness dynamics over an author's lifetime.
- Application to six prolific authors with extensive writing careers.
Main Results:
- Identified diverse patterns of lexical richness evolution among the studied authors.
- Observed distinct temporal dynamics in linguistic richness.
- These patterns showed plausible correlations with authors' health conditions, including suspected or diagnosed Alzheimer's Disease.
Conclusions:
- The proposed methodology provides a robust model for tracking linguistic richness changes.
- Linguistic analysis can reveal individual patterns of decline.
- The findings suggest a potential link between lexical richness dynamics and neurodegenerative conditions.
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