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Automatic measurement of prosody in behavioral variant FTD
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OBJECTIVE: To help understand speech changes in behavioral variant frontotemporal dementia (bvFTD), we developed and implemented automatic methods of speech analysis for quantification of prosody, and evaluated clinical and anatomical correlations. METHODS: We analyzed semi-structured, digitized speech samples from 32 patients with bvFTD (21 male, mean age 63 ± 8.5, mean disease duration 4 ± 3.1 years) and 17 matched healthy controls (HC). We automatically extracted fundamental frequency (f0, the physical property of sound most closely correlating with perceived pitch) and computed pitch range on a logarithmic scale (semitone) that controls for individual and sex differences. We correlated f0 range with neuropsychiatric tests, and related f0 range to gray matter (GM) atrophy using 3T T1 MRI. RESULTS: = 0.03). Regression related reduced f0 range in bvFTD to GM atrophy in bilateral inferior and dorsomedial frontal as well as left anterior cingulate and anterior insular regions. CONCLUSIONS: Reduced f0 range reflects impaired prosody in bvFTD. This is associated with neuroanatomic networks implicated in language production and social disorders centered in the frontal lobe. These findings support the feasibility of automated speech analysis in frontotemporal dementia and other disorders.
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A digital measure of intonational range in speaking has been developed as a potential proxy for apathy.
“A digital measure of intonational range in speaking has been developed as a potential proxy for apathy. 52”
From Developing digital health technologies for frontotemporal degeneration (2025) · cites this paper as [52]
The Abstract and Sound processing section describe an automated measure of pitch range from digitized speech. But the Speech analysis section reports no correlation between pitch range and neuropsychiatric scores, and the Neuroimaging section says it does not exclusively reflect apathy. The paper therefore supports the measure’s development, not its use as a proxy for apathy. (LLM, conf=0.88)
Experimental — accuracy not yet measuredLogopenic variant primary progressive aphasia (lvPPA) is characterized by slow speaking rate with frequent partial words or false starts and frequent, long pauses due to word-finding difficulties.
“One of the non‐amnestic AD presentations, logopenic variant primary progressive aphasia (lvPPA), is characterized by slow speaking rate with frequent partial words or false starts and frequent, long pauses due to word‐finding difficulties.”
From Automatic classification of AD pathology in FTD phenotypes using natural speech (2024) · cites this paper as [10]
The Participants section describes nonaphasic patients with behavioral variant frontotemporal dementia, and the discussion concerns their prosody, not lvPPA. Searches for lvPPA, word-finding pauses, partial words, and false starts found no passage in our copy describing the claimed lvPPA speech pattern. Page numbers were not available. (LLM, conf=0.76)
Experimental — accuracy not yet measuredIn behavioural variant frontotemporal dementia, ASLA captures prosodic and linguistic alterations as well as their worsening in the course of disease.
“In behavioural variant frontotemporal dementia, they capture prosodic 24 and linguistic 72 alterations as well as their worsening in the course of dis ease. 57”
From Speech and language markers of neurodegeneration: a call for global equity (2023) · cites this paper as [24]
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Metadata
- Authors
- Nevler, N., Ash, S., Jester, C., Irwin, D. J., Liberman, M., & Grossman, M.
- Affiliations
- University of Pennsylvania (US)
- Venue
- Neurology
- Published
- 2017-08-15
- Volume
- 89
- Issue
- 7
- Pages
- 650-656
- ISSN
- 0028-3878 (ISSN-L)
- 1526-632X
- PMC
- PMC5562969
- OpenAlex
- W2736901965
- Cited by
- 61
- References
- 47
- Citations by year
- 2026: 8 · 2025: 5 · 2024: 5 · 2023: 10 · 2022: 6 · 2021: 11 · 2020: 4 · 2019: 5 · 2018: 5 · 2017: 2
- FWCI
- 3.59
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Neurology (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute on Aging (R01AG038490, P01AG017586)
- National Institute of Neurological Disorders and Stroke (P50NS053488, K23NS088341)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Health Sciences › Health Professions › Speech and Hearing › Voice and Speech Disorders
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Keywords
- behavioral variant frontotemporal dementia, prosody, fundamental frequency, pitch range, automated speech analysis, gray matter atrophy, frontal lobe, anterior cingulate cortex, anterior insula, neuropsychiatric symptoms, language production
- MeSH terms
- Aged, Atrophy, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Signal Processing, Computer-Assisted, Speech, Speech Production Measurement, Prefrontal Cortex, Frontotemporal Dementia, Gray Matter
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