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Related Concept Videos

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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Auditory Perception01:17

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Unrenewable Cells00:50

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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.
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The Cochlea01:13

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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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Perceiving Loudness, Pitch, and Location01:21

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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.
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Auditory Pathway01:15

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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.
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[Promising methods for sensorineural hearing loss treatment: Cellular technologies].

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Related Experiment Video

Updated: Jan 6, 2026

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea
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Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea

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[Presbyacusis].

N L Kunelskaya1, Yu V Levina1, E V Garov2

  • 1L.I. Sverzhevskiy Research Institute of Clinical Otorhinolaryngology, Moscow Health Department, Moscow, Russia, 117152; Department of Otorhinolaryngology N.I.Pirogov Russian National Research Medical University, Moscow, Russia,117997.

Vestnik Otorinolaringologii
|October 4, 2019
PubMed
Summary
This summary is machine-generated.

Age-related hearing loss, or presbycusis, is a growing concern linked to cognitive decline and dementia risk in older adults. Early hearing rehabilitation can help maintain cognitive function and promote active longevity.

Keywords:
age-related hearing lossgerontologypresbyacusisrehabilitation of auditory functionsensorineural hearing loss

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Area of Science:

  • Gerontology
  • Audiology
  • Neuroscience

Background:

  • Age-related hearing loss (presbycusis) is a significant global socio-medical issue.
  • It stems from the natural aging process affecting the auditory system.
  • Presbycusis is increasingly recognized as a contributing factor to cognitive disorders in the elderly.

Purpose of the Study:

  • To explore the relationship between age-related hearing impairment and cognitive function.
  • To highlight the potential of hearing rehabilitation in mitigating cognitive decline.
  • To emphasize the importance of auditory and cognitive training for socialization in older adults.

Main Methods:

  • Review of recent studies correlating hearing impairment with cognitive processes.
  • Analysis of the impact of hearing aids on cognitive function.
  • Assessment of the role of auditory and cognitive training.

Main Results:

  • Hearing impairment is correlated with cognitive processes, increasing dementia risk in the elderly.
  • Timely hearing rehabilitation using hearing aids can delay cognitive inhibition.
  • Interventions can help prolong active longevity and improve socialization.

Conclusions:

  • Addressing age-related hearing loss is crucial for cognitive health in seniors.
  • Hearing rehabilitation and training are vital for maintaining cognitive function and social engagement.
  • Early intervention can significantly impact the quality of life for older adults with hearing loss.