Related Experiment Video

Updated: Aug 15, 2026

Investigating Outer Hair Cell Motility with a Combination of External Alternating Electrical Field Stimulation and High-speed Image Analysis
09:35

Investigating Outer Hair Cell Motility with a Combination of External Alternating Electrical Field Stimulation and High-speed Image Analysis

Published on: July 18, 2011

Otoacoustic emissions, travelling waves and cochlear mechanisms

D T Kemp

    Hearing Research
    |January 1, 1986
    PubMed

    More Related Videos

    Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces10:21

    Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

    Published on: July 26, 2016

    Performing Intracochlear Electrocochleography During Cochlear Implantation09:10

    Performing Intracochlear Electrocochleography During Cochlear Implantation

    Published on: March 8, 2022

    Related Concept Videos

    Hair Cells01:22

    Hair Cells

    Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
    The Cochlea01:13

    The Cochlea

    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.
    Sound Waves01:01

    Sound Waves

    Sound waves can be thought of as fluctuations in the pressure of a medium through which they propagate. Since the pressure also makes the medium's particles vibrate along its direction of motion, the waves can be modeled as the displacement of the medium's particles from their mean position.
    Sound waves are longitudinal in most fluids because fluids cannot sustain any lateral pressure. In solids, however, shear forces help in propagating the disturbance in the lateral direction as well. Hence,...
    Sound Waves: Interference00:53

    Sound Waves: Interference

    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...
    Anatomy of the Ear01:16

    Anatomy of the Ear

    Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
    Auditory Pathway01:15

    Auditory Pathway

    Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
    When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...