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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.
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...
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...
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
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.

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Related Experiment Video

Updated: Jun 11, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Tinnitus and cochlear implants.

Roberto Bovo1, Andrea Ciorba, Alessandro Martini

  • 1Department of Audiology, University of Ferrara, Italy. roberto.bovo@unife.it

Auris, Nasus, Larynx
|June 29, 2010
PubMed
Summary
This summary is machine-generated.

Cochlear implants (CI) significantly reduce tinnitus loudness and annoyance in most users. While CI shows promise for tinnitus management, further research is needed, especially for unilateral deafness.

Related Experiment Videos

Last Updated: Jun 11, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Area of Science:

  • Audiology
  • Neurosurgery
  • Otolaryngology

Background:

  • Published studies suggest cochlear implants (CI) suppress tinnitus in many users.
  • This study presents personal experiences with tinnitus improvement following cochlear implantation.

Purpose of the Study:

  • To evaluate the effect of cochlear implantation on tinnitus reduction.
  • To assess changes in tinnitus loudness, annoyance, and handicap scores post-implantation.

Main Methods:

  • 51 post-lingually deaf adults completed tinnitus questionnaires and loudness/annoyance scales pre-surgery.
  • 36 patients repeated evaluations 6 months after CI activation.
  • Statistical analysis using Wilcoxon signed ranks test compared pre- and post-operative scores.

Main Results:

  • 77.7% of patients reported reduced tinnitus loudness (36.1% total suppression).
  • 75% of patients experienced reduced tinnitus annoyance.
  • 72.2% of patients showed a reduction in Tinnitus Handicap Inventory (THI) scores.

Conclusions:

  • Cochlear implantation demonstrates significant potential for tinnitus reduction.
  • Mechanisms may include habituation, acoustic masking, electrical stimulation, and cortical reorganization.
  • Caution is advised in interpreting CI benefits for tinnitus, particularly in unilateral deafness, pending further research.