ArticleAlzheimer's & dementia (Amsterdam, Netherlands)
Automated analysis of expressive prosody in Dutch patients with behavioral variant frontotemporal dementia and primary progressive aphasia.
Article in Alzheimer's & dementia (Amsterdam, Netherlands). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPrevious studies have demonstrated impaired expressive prosody in patients with frontotemporal dementia (FTD), but have been conducted in English-speaking cohorts. To examine whether findings generalize across languages, we replicated prior work in Dutch patients.
methodsWe examined expressive prosodic features in semi-structured speech samples from patients with behavioral variant FTD (bvFTD;
resultsPatients with non-fluent variant PPA (nfvPPA) showed the narrowest f0 range and shortest speech duration. f0 range separated patients with reduced prosody (nfvPPA/bvFTD) from those with relatively preserved prosody (semantic variant PPA/logopenic variant PPA). Lower f0 range correlated with reduced fluency and frontotemporal atrophy. DISCUSSION: Viewing expressive prosody as a multidimensional system helps explain why FTD syndromes become dysprosodic in different ways and highlights its diagnostic relevance. Future studies with larger patient samples in less canonical subtypes are needed to replicate and extend our findings.
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