Evidence map›Paper›PMID 26313145›Full record

Trial reportPloS one2015

Effects of Active and Passive Hearing Protection Devices on Sound Source Localization, Speech Recognition, and Tone Detection.

Andrew D Brown, Brianne T Beemer, Nathaniel T Greene, Theodore Argo, G Douglas Meegan, Daniel J Tollin

Open access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. The Effectiveness of Hearing Protection Devices: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2021
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Head movement and its relation to hearing.Frontiers in psychology · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. 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

6 authors at 3 institutions in 1 country.

Andrew D BrownDepartment of Physiology & Biophysics, University of Colorado School of Medicine, Aurora, Colorado, United States of America.
Brianne T BeemerDepartment of Speech, Language, and Hearing Sciences, University of Colorado-Boulder, Boulder, Colorado, United States of America.
Nathaniel T GreeneDepartment of Physiology & Biophysics, University of Colorado School of Medicine, Aurora, Colorado, United States of America.
Theodore ArgoApplied Research Associates, Inc., Littleton, Colorado, United States of America.
G Douglas MeeganApplied Research Associates, Inc., Littleton, Colorado, United States of America.
Daniel J TollinDepartment of Physiology & Biophysics, University of Colorado School of Medicine, Aurora, Colorado, United States of America.
University of Colorado Denver · USApplied Research Associates (United States) · USUniversity of Colorado Boulder · US

Funding

Institutional Training in Otolaryngology ResearchT32DC012280 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI Yuri Agrawal, Sue C. Kinnamon · 2013 to 2026
$3.4M
Behavioral and Physiological Effects of Binaural Cue DistortionF32DC013927 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI BROWN, ANDREW DENNIS · 2014 to 2016
$169k
NIDCD NIH HHS F32 DC013927NIDCD NIH HHS F32-DC013927NIDCD NIH HHS T32 DC012280NIDCD NIH HHS T32-DC012280
6 · The paper itself

Abstract

Hearing protection devices (HPDs) such as earplugs offer to mitigate noise exposure and reduce the incidence of hearing loss among persons frequently exposed to intense sound. However, distortions of spatial acoustic information and reduced audibility of low-intensity sounds caused by many existing HPDs can make their use untenable in high-risk (e.g., military or law enforcement) environments where auditory situational awareness is imperative. Here we assessed (1) sound source localization accuracy using a head-turning paradigm, (2) speech-in-noise recognition using a modified version of the QuickSIN test, and (3) tone detection thresholds using a two-alternative forced-choice task. Subjects were 10 young normal-hearing males. Four different HPDs were tested (two active, two passive), including two new and previously untested devices. Relative to unoccluded (control) performance, all tested HPDs significantly degraded performance across tasks, although one active HPD slightly improved high-frequency tone detection thresholds and did not degrade speech recognition. Behavioral data were examined with respect to head-related transfer functions measured using a binaural manikin with and without tested HPDs in place. Data reinforce previous reports that HPDs significantly compromise a variety of auditory perceptual facilities, particularly sound localization due to distortions of high-frequency spectral cues that are important for the avoidance of front-back confusions.

Indexed as

Ear Protective DevicesPitch PerceptionSound LocalizationSpeech PerceptionAdultHumansMale

Identifiers

PMID26313145
PMCPMC4551850
OpenAlexW2168299495

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.