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Related Concept Videos

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.
Hearing01:31

Hearing

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.
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...
Perception of Sound Waves01:01

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
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...
Lateralization01:28

Lateralization

Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.

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Related Experiment Video

Updated: Jul 5, 2026

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

Asymmetrical hearing loss.

Jessica Prasad1, Vincent C Cousins

  • 1The Alfred Hospital, Melbourne, Victoria. jessicaprasad@mac.com

Australian Family Physician
|May 10, 2008
PubMed
Summary
This summary is machine-generated.

Asymmetrical sensorineural hearing loss can indicate serious conditions like tumors. Early diagnosis by general practitioners is crucial for timely treatment and preventing further hearing loss progression.

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Last Updated: Jul 5, 2026

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
09:44

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

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

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
03:49

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode

Published on: October 11, 2024

Area of Science:

  • Audiology
  • Neurology
  • Otolaryngology

Background:

  • General practitioners are the primary contact for patients experiencing hearing loss.
  • Asymmetrical sensorineural hearing loss is a potential indicator of various underlying diseases.
  • Accurate diagnosis is critical for effective management and mitigating hearing loss progression.

Purpose of the Study:

  • To outline a diagnostic approach for patients with asymmetrical sensorineural hearing loss.
  • To summarize four potential disease processes associated with asymmetrical hearing loss.

Main Methods:

  • Clinical assessment and diagnostic workup for asymmetrical sensorineural hearing loss.
  • Review of literature for relevant disease pathologies.

Main Results:

  • Asymmetrical sensorineural hearing loss can stem from aging or noise exposure.
  • It may be an early sign of vestibular schwannoma or intracranial tumors.

Conclusions:

  • A high index of clinical suspicion is necessary for identifying serious causes of asymmetrical sensorineural hearing loss.
  • Prompt diagnosis and management are essential to prevent irreversible hearing damage and address potentially life-threatening conditions.