Evidence map›Paper›PMID 33679361›Full record

ArticleFrontiers in neuroinformatics2021

X-Vectors: New Quantitative Biomarkers for Early Parkinson's Disease Detection From Speech.

Laetitia Jeancolas, Dijana Petrovska-Delacrétaz, Graziella Mangone, Badr-Eddine Benkelfat, Jean-Christophe Corvol, Marie Vidailhet, Stéphane Lehéricy, Habib Benali

Abstract read
In one paragraph

Article in Frontiers in neuroinformatics, 2021. 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.

  1. Pooled it
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  4. An End-to-End Overview of Clinical Speech AI.IEEE transactions on audio, speech, and language processing (2025) · 2026
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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

8 authors.

Laetitia JeancolasParis Brain Institute-ICM, Centre de NeuroImagerie de Recherche-CENIR, Paris, France.
Dijana Petrovska-DelacrétazLaboratoire SAMOVAR, Télécom SudParis, Institut Polytechnique de Paris, Palaiseau, France.
Graziella MangoneSorbonne University, Inserm, CNRS, Paris Brain Institute-ICM, Paris, France.
Badr-Eddine BenkelfatLaboratoire SAMOVAR, Télécom SudParis, Institut Polytechnique de Paris, Palaiseau, France.
Jean-Christophe CorvolSorbonne University, Inserm, CNRS, Paris Brain Institute-ICM, Paris, France.
Marie VidailhetSorbonne University, Inserm, CNRS, Paris Brain Institute-ICM, Paris, France.
Stéphane LehéricyParis Brain Institute-ICM, Centre de NeuroImagerie de Recherche-CENIR, Paris, France.
Habib BenaliDepartment of Electrical & Computer Engineering, PERFORM Center, Concordia University, Montreal, QC, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many articles have used voice analysis to detect Parkinson's disease (PD), but few have focused on the early stages of the disease and the gender effect. In this article, we have adapted the latest speaker recognition system, called x-vectors, in order to detect PD at an early stage using voice analysis. X-vectors are embeddings extracted from Deep Neural Networks (DNNs), which provide robust speaker representations and improve speaker recognition when large amounts of training data are used. Our goal was to assess whether, in the context of early PD detection, this technique would outperform the more standard classifier MFCC-GMM (Mel-Frequency Cepstral Coefficients-Gaussian Mixture Model) and, if so, under which conditions. We recorded 221 French speakers (recently diagnosed PD subjects and healthy controls) with a high-quality microphone and via the telephone network. Men and women were analyzed separately in order to have more precise models and to assess a possible gender effect. Several experimental and methodological aspects were tested in order to analyze their impacts on classification performance. We assessed the impact of the audio segment durations, data augmentation, type of dataset used for the neural network training, kind of speech tasks, and back-end analyses. X-vectors technique provided better classification performances than MFCC-GMM for the text-independent tasks, and seemed to be particularly suited for the early detection of PD in women (7-15% improvement). This result was observed for both recording types (high-quality microphone and telephone).

Indexed as

automatic detectiondeep neural networksearly detectionMFCCParkinson's diseasetelediagnosisvoice analysisx-vectors

Identifiers

PMID33679361
PMCPMC7935511

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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.