DOI: 10.3389/fnagi.2020.607449
One-Liner
oral lexical retrieval works better than qualitative narrative analysis to classify dementia; and semantic fluency + Disfluency features chucked on an SVM returns pretty good results.
Novelty
Tried two different assays of measuring linguistic ability: oral lexical retrieval metrics, and qualitative discourse features analysis of speech.
Notable Methods
Subjects divided into three groups
- Great cog. decline
- Impaired but stable
- Healthy controls
Administered BNT and SVF tests as baseline
Key Figs
Table 3
This figure tells us that the percentages of unrelated utterances was a statistically significant metric to figure differences between the three experimental groups.
(CD, CS, HC: cognitive decline, cognitively stable (but declining normally), healthy control)
(no other items are bolded)
Table 4
This figure tells us the disfluency features analyzed. None of them were independently statistically significant.
Table 5
This figure tells us that analyzing Semantic Verbal Fluency, plus the information of disfluency, trained on an SVM, actually shows >90% recall value?