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 Concept Videos

Shock Waves01:16

Shock Waves

2.1K
While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
2.1K
Sound Waves: Interference00:53

Sound Waves: Interference

4.2K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
4.2K
Sound as Pressure Waves01:17

Sound as Pressure Waves

3.4K
Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
3.4K
Sound Intensity00:58

Sound Intensity

4.1K
The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the...
4.1K
Sound Waves: Resonance01:14

Sound Waves: Resonance

2.8K
Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
2.8K
Sound Intensity Level00:53

Sound Intensity Level

4.0K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.0K

You might also read

Related Articles

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

Sort by
Same author

Massive primary hemorrhage during tonsillectomy from a large venous varicosity.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgeryยท1997
Same author

Last male sperm precedence in a damselfly demonstrated by RAPD profiling.

Molecular ecologyยท1996
Same author

Minimisation of aminoglycoside toxicity in patients with cystic fibrosis.

Thoraxยท1996
Same author

Absence of toxicity in patients with malignant otitis externa following long-term treatment with high dosage tobramycin.

The Journal of antimicrobial chemotherapyยท1994
Same author

Dosage adjustment and clinical outcomes of long-term use of high-dose tobramycin in adult cystic fibrosis patients.

The Journal of antimicrobial chemotherapyยท1991
Same author

Sinusoidal harmonic acceleration testing in normal humans.

The Laryngoscopeยท1991
Same journal

Discomfort and Intolerance During 24-Hour Multichannel Intraluminal Impedance-pH Monitoring.

The Journal of laryngology and otologyยท2026
Same journal

The Effect of Hand Dominance on Results in the Functional Head Impulse Test.

The Journal of laryngology and otologyยท2026
Same journal

Prognostic value of gross tumour volume in laryngeal cancer: a systematic review and meta-analysis.

The Journal of laryngology and otologyยท2026
Same journal

Surgical Management Of Parapharyngeal Vagal Schwannomas: A Systematic Review And Practical Considerations For Approach Selection.

The Journal of laryngology and otologyยท2026
Same journal

Novel Use of Lieberman Self-Retainers for Nasal Alar Retraction.

The Journal of laryngology and otologyยท2026
Same journal

Prevalence and recovery of taste dysfunction after stapedectomy in otosclerosis: a clinical study of 320 patients.

The Journal of laryngology and otologyยท2026
See all related articles

Related Experiment Video

Updated: May 2, 2026

Author Spotlight: Development of a Laser-Induced Shock Wave Animal Model Without Tympanic Membrane Perforation
05:44

Author Spotlight: Development of a Laser-Induced Shock Wave Animal Model Without Tympanic Membrane Perforation

Published on: March 1, 2024

1.0K

Acoustic shock controversies.

R E Hooper1

  • 1Private practice, Melbourne, Victoria,Australia.

The Journal of Laryngology and Otology
|February 26, 2014
PubMed
Summary
This summary is machine-generated.

This study questions acoustic shock diagnoses, finding symptoms like ear pain and tinnitus are likely psychogenic, not organic. Workplace factors and varied incidents suggest psychological origins over physical injury.

More Related Videos

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents
08:38

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Published on: September 1, 2011

77.6K
Shock Wave Application to Cell Cultures
05:39

Shock Wave Application to Cell Cultures

Published on: April 8, 2014

12.3K

Related Experiment Videos

Last Updated: May 2, 2026

Author Spotlight: Development of a Laser-Induced Shock Wave Animal Model Without Tympanic Membrane Perforation
05:44

Author Spotlight: Development of a Laser-Induced Shock Wave Animal Model Without Tympanic Membrane Perforation

Published on: March 1, 2024

1.0K
Habituation and Prepulse Inhibition of Acoustic Startle in Rodents
08:38

Habituation and Prepulse Inhibition of Acoustic Startle in Rodents

Published on: September 1, 2011

77.6K
Shock Wave Application to Cell Cultures
05:39

Shock Wave Application to Cell Cultures

Published on: April 8, 2014

12.3K

Area of Science:

  • Occupational Health
  • Psychosomatic Medicine
  • Audiology

Background:

  • Increasing diagnoses of 'acoustic shock' in healthcare settings warrant critical evaluation.
  • This study investigates the validity of acoustic shock as a distinct pathological entity.

Observation:

  • A review of 16 medico-legal cases diagnosed with acoustic shock was conducted.
  • Common symptoms reported include otalgia, noise sensitivity, tinnitus, hearing disturbance, and dizziness.

Findings:

  • Variations in acoustic incidents, workplace noise control, and symptom onset timing suggest a predominantly psychogenic basis.
  • Evidence of pseudohypacusis points to malingering in some cases.
  • Clustering of events in call centers suggests potential hysterical components.

Implications:

  • The findings challenge the organic pathological classification of acoustic shock.
  • This research suggests a need to consider psychogenic factors and workplace stressors in diagnosing such conditions.
  • Further investigation into the psychosomatic aspects of noise-induced symptoms is recommended.