Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Delayed temporary threshold shift induced by impulse noises (weapon noises) in men.

A Dancer1, P Grateau, A Cabanis

  • 1French-German Research Institute of Saint-Louis, France.

Audiology : Official Organ of the International Society of Audiology
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Tangential velocity constraint for orbital maneuvers with Theory of Functional Connections.

Scientific reports·2024
Same author

COS-Speech: protocol to develop a core outcome set for dysarthria after stroke for use in clinical practice and research.

Trials·2023
Same author

[Evaluation of dental medical devices: Focus on the definition of needs].

Annales pharmaceutiques francaises·2019
Same author

[Review of patient-specific instrumentation for total knee prosthesis].

Annales pharmaceutiques francaises·2018
Same author

[Perspective of the transition from reusable instruments to single use ancillary in orthopedic surgery].

Annales pharmaceutiques francaises·2017
Same author

[Serious adverse events after microbial sealant application in paediatric patients].

Annales pharmaceutiques francaises·2014
Same journal

Apoptosis in the OC-k3 immortalized cell line treated with different agents.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Age-related histopathological changes of the stria vascularis: an experimental model.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Anatomical, metabolic and genetic aspects of age-related hearing loss in mice.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Effect of ageing on otoacoustic emissions and efferent suppression in humans.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Cochlear function and speech recognition in the elderly.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Determination and classification of the problems experienced by hearing-impaired elderly people.

Audiology : official organ of the International Society of Audiology·2002
See all related articles

Temporary threshold shift (TTS) from impulse noise can be delayed or rebound, meaning a single TTS2 measurement is insufficient for assessing hearing damage risk. Further research is needed for updated impulse noise criteria.

Area of Science:

  • Audiology
  • Occupational Health
  • Acoustics

Background:

  • Temporary threshold shift (TTS) is typically measured 2 minutes post-exposure (TTS2) and recovers linearly with log-time for continuous noise.
  • Existing research on impulse noise suggests exceptions to this log-time recovery, with some individuals exhibiting delayed TTS or rebound recovery.
  • The widely used TTS2 may not adequately represent the full magnitude of TTS following impulse noise exposure.

Purpose of the Study:

  • To investigate the occurrence of delayed TTS and rebound recovery in humans exposed to actual weapon impulse noises.
  • To determine if standard TTS2 measurements are sufficient for assessing hearing damage risk from impulse noise.
  • To evaluate the necessity of extended audiometric testing post-exposure.

Main Methods:

Related Experiment Videos

  • Three groups of 28 soldiers were exposed to rifle impulse noise without hearing protection.
  • Békésy audiograms were administered before exposure and at 5 minutes, 1 hour, and 4 hours post-exposure.
  • Audiometric testing was conducted even if initial TTS was not observed.

Main Results:

  • A significant number of subjects demonstrated delayed TTS and/or rebound recovery.
  • The peak TTS was observed at 1 hour after exposure in many participants.
  • Delayed and rebound recovery patterns were evident, indicating TTS can evolve over time.

Conclusions:

  • Single TTS2 measurements are inadequate for assessing the full impact of impulse noise on hearing.
  • Audiometric evaluations should extend to at least 4 hours post-exposure to capture delayed and rebound recovery phenomena.
  • Current damage risk criteria for high-level impulse noise may require revision based on these findings.