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Related Concept Videos

Auditory Pathway01:15

Auditory Pathway

9.1K
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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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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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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The Cochlea01:13

The Cochlea

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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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Auditory Perception01:17

Auditory Perception

1.5K
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...
1.5K
The Auditory Ossicles01:11

The Auditory Ossicles

4.0K
The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
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Related Experiment Video

Updated: Apr 16, 2026

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve
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Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve

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Development of the auditory system.

Ruth Litovsky1

  • 1Binaural Hearing and Speech Laboratory, Waisman Center, University of Wisconsin-Madison, Madison, WI, USA.

Handbook of Clinical Neurology
|March 2, 2015
PubMed
Summary

Auditory development involves lifelong changes in the brain, influenced by stimulation and non-auditory factors like cognition. This maturation impacts sound perception and communication skills throughout human development.

Keywords:
auditorychildrendeprivationdevelopmentexperiencefunctionalhearingperception

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Auditory Science

Background:

  • Auditory development is a prolonged process involving the peripheral and central nervous system.
  • It encompasses changes occurring naturally and in response to sensory stimulation.
  • The auditory system constructs perceptual spaces, segregates sounds, and enables communication.

Purpose of the Study:

  • To explore the multifaceted nature of auditory development.
  • To understand the interplay between auditory pathways and cognitive functions.
  • To highlight the role of neural plasticity in auditory adaptation.

Main Methods:

  • Behavioral psychophysics to assess auditory abilities.
  • Physiologic measurements and neural imaging techniques.
  • Analysis of sound coding for features like frequency, intensity, loudness, and location.

Main Results:

  • Basic auditory abilities are present at birth, with significant maturation continuing into adolescence.
  • Auditory development is influenced by both direct auditory pathway maturation and non-auditory factors (attention, memory, cognition).
  • The auditory system demonstrates significant neural plasticity, adapting to novel stimuli.

Conclusions:

  • Auditory development is a complex, lifelong process extending well beyond infancy.
  • Cognitive functions play a crucial role in shaping auditory perception and development.
  • Neural plasticity is a fundamental mechanism underlying auditory adaptation and development.