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Related Concept Videos

Auditory Pathway01:15

Auditory Pathway

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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...
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Hair Cells01:22

Hair Cells

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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.
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Hearing01:31

Hearing

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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.
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Unrenewable Cells00:50

Unrenewable Cells

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In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of...
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The Cochlea01:13

The Cochlea

41.0K
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.
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Anatomy of the Ear01:16

Anatomy of the Ear

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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...
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Related Experiment Video

Updated: May 2, 2026

Author Spotlight: Advancements in Cultivating Mouse Hair Cells for Auditory Research
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Central auditory function of deafness genes.

Marc A Willaredt1, Lena Ebbers1, Hans Gerd Nothwang2

  • 1Neurogenetics Group, Center of Excellence Hearing4All, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26111 Oldenburg, Germany.

Hearing Research
|February 26, 2014
PubMed
Summary
This summary is machine-generated.

Deafness genes impact the central auditory system in gene-specific ways, not just from peripheral hearing loss. Understanding these central auditory functions is key for predicting hearing device outcomes.

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Area of Science:

  • Auditory Neuroscience
  • Genetics
  • Otolaryngology

Background:

  • Variable hearing device benefit poses challenges in auditory rehabilitation.
  • Central auditory functions of deafness genes are increasingly recognized as critical factors.
  • Peripheral deafness is often assumed to affect the central auditory system uniformly.

Purpose of the Study:

  • To summarize current knowledge on the diverse central auditory functions of deafness genes.
  • To propose gene regulatory networks as an explanation for widespread deafness gene expression.
  • To highlight the need for better understanding of central auditory dysfunction in genetic deafness.

Main Methods:

  • Review of current literature on deafness genes and their central auditory functions.
  • Analysis of genome-wide expression data for deafness genes in the auditory brainstem.
  • Functional characterization of transgenic mouse models with mutated deafness genes.

Main Results:

  • Deafness genes exhibit gene-specific abnormalities in the central auditory system.
  • A significant enrichment of deafness genes was found in the auditory brainstem transcriptome.
  • Evidence suggests interwoven gene regulatory networks influence the development of the otic placode and hindbrain.

Conclusions:

  • Central auditory dysfunction stemming from genetic alterations in deafness genes requires further investigation.
  • Improved genetic diagnostics coupled with knowledge of central auditory functions can enhance hearing device outcome prediction.
  • Understanding gene-specific central effects is crucial for advancing auditory rehabilitation.