A critical review of proposition analysis in Alzheimer's research and elsewhere

Propositional analysis of text, including the generation of proposition density ratios, is examined within the context of Alzheimer's research. A discussion of linguistic modularity raises questions regarding the outcomes of propositional analysis and its applications in Alzheimer's research.

► PDR reliably predicts later Alzheimer's disease.
► PDR is based on an autonomous, modular syntax.
► Automated PDR is highly reliable.
► There is some question what PDR is measuring.