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Updated: Jun 13, 2025

Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
Published on: February 14, 2014
Propositional density: cognitive impairment and aging
Chaimae Harrag1,2,3, Abdelkader Sabil1, Manuel Célio Conceição2
1Arts, Languages, and Literature, Faculty of Languages, Arts, and Human Sciences, Hassan 1 University, Settat, Morocco.
Abstract:
It is important to understand the relationship between cognitive abilities and language processing. Here, we explore a burgeoning area of research that harnesses semantic indices to predict cognitive impairment and track cognitive decline. One such index, propositional density, quantifies the information conveyed per language segment. Despite some variation stemming from methodological, sampling, and measurement differences, we suggest that propositional density has diagnostic and assessment value. This paper surveys existing studies that have used propositional density in the context of cognitive aging and impairment and offers some insights into the use of this index to highlight differences in cognition. We also suggest further explorations of basic research involving this concept, and some applications for assessing cognitive health.
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