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

Sound Intensity Level00:53

Sound Intensity Level

4.3K
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...
4.3K
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

444
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
444
The Cochlea01:13

The Cochlea

46.1K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
46.1K
Hearing01:31

Hearing

53.1K
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
53.1K
Sound Intensity00:58

Sound Intensity

4.2K
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...
4.2K
Intensity and Pressure of Sound Waves01:05

Intensity and Pressure of Sound Waves

1.2K
The intensity of sound waves can be related to displacement and pressure amplitudes by using their wave expressions and the definition of intensity. The critical step to achieve this is to write the power delivered by the particles on the wave as the product of force and velocity and simplify the force per unit area as the pressure. The velocity of the medium's particles can be derived from the displacement.
Unlike the time average of a sinusoidal term, which is zero since it is positive...
1.2K

You might also read

Related Articles

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

Sort by
Same author

The cognitive foundations of food moralization.

Appetite·2026
Same author

Intravestibular Lipoma with Intracochlear Extension: A Case Report on Surgical Management and Cochlear Implantation.

The journal of international advanced otology·2026
Same author

Editorial: Cholesteatoma surgery: treatment outcome and follow up.

Frontiers in surgery·2026
Same author

Eight years of vestibular screening in children at increased risk: Results and perspectives.

International journal of pediatric otorhinolaryngology·2026
Same author

Identification and synthesis of decision-making factors in vestibular schwannoma treatment.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·2026
Same author

3D-motion mapping of the malleus-incus complex using a robot-mounted optical coherence tomography vibrometry system.

Journal of biomedical optics·2026

Related Experiment Video

Updated: Sep 20, 2025

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

445

Intracochlear pressure as an objective measure for perceived loudness with bone conduction implants.

Tristan Putzeys1, Charlotte Borgers2, Guy Fierens3

  • 1KU Leuven - University of Leuven, Department of Neurosciences, ExpORL, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Physics and Astronomy, Laboratory for Soft Matter and Biophysics, Heverlee, Belgium.

Hearing Research
|June 11, 2022
PubMed
Summary

Intracochlear sound pressure (ICP) correlates with perceived loudness in bone conduction hearing. This study validates ICP as an objective measure of cochlear stimulation, offering direct insight into inner ear sound levels.

Keywords:
Bone conductionHearing implantIntracochlear pressureLdvObjective measuresVibrometry

More Related Videos

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
06:54

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

1.3K
Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

4.5K

Related Experiment Videos

Last Updated: Sep 20, 2025

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

445
Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
06:54

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

1.3K
Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

4.5K

Area of Science:

  • Audiology
  • Biomedical Engineering
  • Otoacoustic Emissions

Background:

  • Current preclinical assessment of bone conduction implants relies on cochlear promontory vibration measurement.
  • Bone conduction sound transmission is complex, influenced by frequency, amplitude, and multiple pathways.

Purpose of the Study:

  • To validate intracochlear sound pressure (ICP) as an objective indicator of perceived loudness for bone conduction (BC) stimulation.
  • To investigate the correlation between ICP measurements in cadaveric temporal bones and clinical loudness balancing experiments.

Main Methods:

  • Normal hearing subjects performed loudness balancing between air conducted (AC) and bone conducted (BC) sound.
  • ICP was measured in four cadaveric temporal bones during AC and BC stimulation at 80 dBHL.
  • A lock-in amplification technique was used for precise ICP measurement.

Main Results:

  • Stimulating at equal perceived loudness via AC and BC resulted in similar differential ICP.
  • Differences in ICP between AC and BC stimulation fell within the normal variability range observed in human subjects.

Conclusions:

  • ICP measurements validate its use as an objective indicator of cochlear drive for both AC and BC stimulation.
  • While more time-consuming than vibratory measurements, ICP provides direct data on sound pressure levels within the cochlear scalae.