Evidence map›Paper›PMID 37726285›Full record

ArticleTranslational psychiatry2023

Relative importance of speech and voice features in the classification of schizophrenia and depression.

Mark Berardi, Katharina Brosch, Julia-Katharina Pfarr, Katharina Schneider, Angela Sültmann, Florian Thomas-Odenthal, Adrian Wroblewski, Paula Usemann, Alexandra Philipsen, Udo Dannlowski and 5 more

Abstract read
In one paragraph

Article in Translational psychiatry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The Voice of Endo: Leveraging Speech for an Intelligent System That Can Forecast Illness Flare-ups.Proceedings of the SIGCHI conference on human factors in computing systems. CHI Conference · 2025
    Article
  16. Screening Voice Disorders: Acoustic Voice Quality Index, Cepstral Peak Prominence, and Machine Learning.Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP) · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. Article
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

15 authors.

Mark BerardiDepartment of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany. Mark.Berardi@ukbonn.de.ORCID http://orcid.org/0000-0003-0491-0952
Katharina BroschDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.ORCID http://orcid.org/0000-0002-0526-8095
Julia-Katharina PfarrDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.
Katharina SchneiderInstitute for Linguistics: General Linguistics, University of Mainz, Mainz, Germany.
Angela SültmannDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.ORCID http://orcid.org/0009-0009-6886-0465
Florian Thomas-OdenthalDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.
Adrian WroblewskiDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.ORCID http://orcid.org/0000-0002-0371-7686
Paula UsemannDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.
Alexandra PhilipsenDepartment of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany.ORCID http://orcid.org/0000-0001-6876-518X
Udo DannlowskiInstitute for Translational Psychiatry, University of Münster, Münster, Germany.
Igor NenadićDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.
Tilo KircherDepartment of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.
Axel KrugDepartment of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany.ORCID http://orcid.org/0000-0002-0564-2497
Frederike Stein *Department of Psychiatry and Psychotherapy, University of Marburg, Marburg, Germany.
Maria Dietrich *Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany.ORCID http://orcid.org/0000-0003-2547-5371

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Speech is a promising biomarker for schizophrenia spectrum disorder (SSD) and major depressive disorder (MDD). This proof of principle study investigates previously studied speech acoustics in combination with a novel application of voice pathology features as objective and reproducible classifiers for depression, schizophrenia, and healthy controls (HC). Speech and voice features for classification were calculated from recordings of picture descriptions from 240 speech samples (20 participants with SSD, 20 with MDD, and 20 HC each with 4 samples). Binary classification support vector machine (SVM) models classified the disorder groups and HC. For each feature, the permutation feature importance was calculated, and the top 25% most important features were used to compare differences between the disorder groups and HC including correlations between the important features and symptom severity scores. Multiple kernels for SVM were tested and the pairwise models with the best performing kernel (3-degree polynomial) were highly accurate for each classification: 0.947 for HC vs. SSD, 0.920 for HC vs. MDD, and 0.932 for SSD vs. MDD. The relatively most important features were measures of articulation coordination, number of pauses per minute, and speech variability. There were moderate correlations between important features and positive symptoms for SSD. The important features suggest that speech characteristics relating to psychomotor slowing, alogia, and flat affect differ between HC, SSD, and MDD.

Indexed as

Major Depressive DisorderSchizophreniaDepressionHumansSpeechSupport Vector Machine

Identifiers

PMID37726285
PMCPMC10509176

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.