Evidence map›Paper›PMID 38308366›Full record

ArticleAlzheimer's research & therapy2024

Unveiling the sound of the cognitive status: Machine Learning-based speech analysis in the Alzheimer's disease spectrum.

Fernando García-Gutiérrez, Montserrat Alegret, Marta Marquié, Nathalia Muñoz, Gemma Ortega, Amanda Cano, Itziar De Rojas, Pablo García-González, Clàudia Olivé, Raquel Puerta and 11 more

Abstract read
In one paragraph

Article in Alzheimer's research & therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors.

Fernando García-GutiérrezAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Montserrat AlegretAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Marta MarquiéAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Nathalia MuñozAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Gemma OrtegaAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Amanda CanoAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Itziar De RojasAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Pablo García-GonzálezAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Clàudia OlivéAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Raquel PuertaAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Ainhoa García-SanchezAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
María Capdevila-BayoAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Laura MontrrealAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Vanesa PytelAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Maitee Rosende-RocaAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Carla ZalduaAccexible Impacto s.l., Urduliz, Bizkaia, Spain.
Peru GabirondoAccexible Impacto s.l., Urduliz, Bizkaia, Spain.
Lluís TárragaAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Agustín RuizAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Mercè BoadaAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain.
Sergi ValeroAce Alzheimer Center Barcelona, Universitat Internacional de Catalunya, Barcelona, Spain. svalero@fundacioace.org.

Funding

Next Generation EU MIA.2021.M02.0005
6 · The paper itself

Abstract

backgroundAdvancement in screening tools accessible to the general population for the early detection of Alzheimer's disease (AD) and prediction of its progression is essential for achieving timely therapeutic interventions and conducting decentralized clinical trials. This study delves into the application of Machine Learning (ML) techniques by leveraging paralinguistic features extracted directly from a brief spontaneous speech (SS) protocol. We aimed to explore the capability of ML techniques to discriminate between different degrees of cognitive impairment based on SS. Furthermore, for the first time, this study investigates the relationship between paralinguistic features from SS and cognitive function within the AD spectrum.

methodsPhysical-acoustic features were extracted from voice recordings of patients evaluated in a memory unit who underwent a SS protocol. We implemented several ML models evaluated via cross-validation to identify individuals without cognitive impairment (subjective cognitive decline, SCD), with mild cognitive impairment (MCI), and with dementia due to AD (ADD). In addition, we established models capable of predicting cognitive domain performance based on a comprehensive neuropsychological battery from Fundació Ace (NBACE) using SS-derived information.

resultsThe results of this study showed that, based on a paralinguistic analysis of sound, it is possible to identify individuals with ADD (F1 = 0.92) and MCI (F1 = 0.84). Furthermore, our models, based on physical acoustic information, exhibited correlations greater than 0.5 for predicting the cognitive domains of attention, memory, executive functions, language, and visuospatial ability.

conclusionsIn this study, we show the potential of a brief and cost-effective SS protocol in distinguishing between different degrees of cognitive impairment and forecasting performance in cognitive domains commonly affected within the AD spectrum. Our results demonstrate a high correspondence with protocols traditionally used to assess cognitive function. Overall, it opens up novel prospects for developing screening tools and remote disease monitoring.

Indexed as

Alzheimer DiseaseCognitive DysfunctionCognitionDisease ProgressionHumansMachine LearningNeuropsychological TestsSpeechAlzheimer’s diseaseAutomated pattern recognitionEarly diagnosisMachine LearningMild cognitive impairmentNeuropsychological testsSpeech acoustics

Identifiers

PMID38308366
PMCPMC10835990

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.