Evidence map›Paper›PMID 35930680›Full record

ArticleJournal of speech, language, and hearing research : JSLHR2022

Lombard Effect in Individuals With Nonphonotraumatic Vocal Hyperfunction: Impact on Acoustic, Aerodynamic, and Vocal Fold Vibratory Parameters.

Christian Castro, Pavel Prado, Víctor M Espinoza, Alba Testart, Daphne Marfull, Rodrigo Manriquez, Cara E Stepp, Daryush D Mehta, Robert E Hillman, Matías Zañartu

Open access · greenAbstract read
In one paragraph

Article in Journal of speech, language, and hearing research : JSLHR, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Auditory-Motor Mechanisms of the Lombard Effect.Journal of speech, language, and hearing research : JSLHR · 2026
    Article
  2. Article
  3. Article
  4. DIVA Meets EEG: Model Validation Using Formant-Shift Reflex.Applied sciences (Basel, Switzerland) · 2023
    Article
  5. Vocal Folds' Oscillatory Characteristics After Photoangiolytic Laser Treatment Using the Blue Light Laser-A Pilot Study.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale
    Observational
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

10 authors at 2 institutions in 2 countries.

Christian CastroDepartment of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.
Pavel PradoLatin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile.
Víctor M EspinozaDepartment of Sound, Universidad de Chile, Santiago.ORCID 0000-0001-9013-6830
Alba TestartDepartment of Speech and Language Pathology, Universidad de Playa Ancha, Valparaíso, Chile.
Daphne MarfullDepartment of Speech and Language Pathology, Universidad de Valparaíso, Chile.
Rodrigo ManriquezDepartment of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.
Cara E SteppDepartment of Speech, Language, and Hearing Sciences, Boston University, MA.ORCID 0000-0002-8045-252X
Daryush D MehtaCenter for Laryngeal Surgery & Voice Rehabilitation, Massachusetts General Hospital, Boston.ORCID 0000-0002-6535-573X
Robert E HillmanCenter for Laryngeal Surgery & Voice Rehabilitation, Massachusetts General Hospital, Boston.ORCID 0000-0002-7374-994X
Matías ZañartuDepartment of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile.ORCID 0000-0001-5581-4392
Google (United States) · USBoston University · US

Funding

Use of ambulatory biofeedback to improve behavioral treatment of vocal hyperfunctionP50DC015446 · NIDCD · MASSACHUSETTS GENERAL HOSPITAL · PI Jarrad Van Stan · 2017 to 2026
$25.5M
NIDCD NIH HHS P50 DC015446
6 · The paper itself

Abstract

purposeThis exploratory study aims to investigate variations in voice production in the presence of background noise (Lombard effect) in individuals with nonphonotraumatic vocal hyperfunction (NPVH) and individuals with typical voices using acoustic, aerodynamic, and vocal fold vibratory measures of phonatory function.

methodNineteen participants with NPVH and 19 participants with typical voices produced simple vocal tasks in three sequential background conditions: baseline (in quiet), Lombard (in noise), and recovery (5 min after removing the noise). The Lombard condition consisted of speech-shaped noise at 80 dB SPL through audiometric headphones. Acoustic measures from a microphone, glottal aerodynamic parameters estimated from the oral airflow measured with a circumferentially vented pneumotachograph mask, and vocal fold vibratory parameters from high-speed videoendoscopy were analyzed.

resultsDuring the Lombard condition, both groups exhibited a decrease in open quotient and increases in sound pressure level, peak-to-peak glottal airflow, maximum flow declination rate, and subglottal pressure. During the recovery condition, the acoustic and aerodynamic measures of individuals with typical voices returned to those of the baseline condition; however, recovery measures for individuals with NPVH did not return to baseline values.

conclusionsAs expected, individuals with NPVH and participants with typical voices exhibited a Lombard effect in the presence of elevated background noise levels. During the recovery condition, individuals with NPVH did not return to their baseline state, pointing to a persistence of the Lombard effect after noise removal. This behavior could be related to disruptions in laryngeal motor control and may play a role in the etiology of NPVH. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.20415600.

Indexed as

Vocal CordsVoiceAcousticsGlottisHumansPhonation

Identifiers

PMID35930680
PMCPMC9913286
OpenAlexW4292258100

What OpenQuestion holds

Textmetadata
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.