Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

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...
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...
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.
Sound Intensity Level00:53

Sound Intensity Level

Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
Doppler Effect - II01:05

Doppler Effect - II

The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Threshold-distance functions predict speech recognition with cochlear implants.

Scientific reports·2025
Same author

[Pilot study: evaluation of manual methods for modulating the cardinal symptom tinnitus : A prospective randomized study].

HNO·2022
Same author

Cochlear Implantation: Concept, Results Outcomes and Quality of Life.

Laryngo- rhino- otologie·2022
Same author

Towards single-trial classification of invasively recorded auditory evoked potentials in cochlear implant users.

Journal of neural engineering·2022
Same author

Cochlea implantation in patients with superficial hemosiderosis.

European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·2021
Same author

The Association of Clinical Characteristics and Tumour Markers With Image-Defined Risk Factors in the Management of Neuroblastoma in South Africa.

Clinical oncology (Royal College of Radiologists (Great Britain))·2021

Related Experiment Video

Updated: Jun 23, 2026

A Low Cost Setup for Behavioral Audiometry in Rodents
09:23

A Low Cost Setup for Behavioral Audiometry in Rodents

Published on: October 16, 2012

Impact of low-frequency hearing.

A Büchner1, M Schüssler, R D Battmer

  • 1Department of Otolaryngology, Medizinische Hochschule Hannover, Hannover, Germany. buechner@hoerzentrum-hannover.de

Audiology & Neuro-Otology
|April 25, 2009
PubMed
Summary

Preserving residual low-frequency hearing with the Hybrid-L cochlear implant significantly improves speech understanding in noisy environments. Even limited low-frequency hearing below 500 Hz enhances performance when combined with a cochlear implant.

More Related Videos

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
06:01

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R

Published on: December 9, 2022

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea
09:54

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

Published on: May 10, 2019

Related Experiment Videos

Last Updated: Jun 23, 2026

A Low Cost Setup for Behavioral Audiometry in Rodents
09:23

A Low Cost Setup for Behavioral Audiometry in Rodents

Published on: October 16, 2012

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
06:01

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R

Published on: December 9, 2022

Morphological and Functional Evaluation of Ribbon Synapses at Specific Frequency Regions of the Mouse Cochlea
09:54

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

Published on: May 10, 2019

Area of Science:

  • Audiology
  • Neurosurgery
  • Biomedical Engineering

Background:

  • Cochlear implantation is a standard treatment for severe to profound hearing loss.
  • Current cochlear implants often result in suboptimal speech perception in noisy environments.
  • Residual low-frequency hearing is linked to better speech understanding, particularly in complex auditory scenes.

Purpose of the Study:

  • To investigate the impact of residual low-frequency hearing on speech perception in patients using the Nucleus Hybrid-L cochlear implant.
  • To evaluate the efficacy of the Hybrid-L device in preserving residual hearing.
  • To determine the minimum effective residual hearing range for speech perception enhancement.

Main Methods:

  • Utilized the Nucleus Hybrid-L device, featuring a delicate electrode array designed to preserve residual hearing.
  • Conducted sentence recognition tests on 22 subjects.
  • Performed speech perception tests with a competing talker on 8 subjects, limiting the acoustic frequency range to 300, 500, and 700 Hz.

Main Results:

  • The Hybrid-L group demonstrated statistically significant improvements in speech reception thresholds (SRT) across conditions: hearing aid alone (15.9 dB), cochlear implant alone (10.8 dB), and combined use (3.9 dB).
  • Additional experiments indicated that residual hearing below 500 Hz significantly enhances speech perception when used with a cochlear implant.
  • The Hybrid-L device effectively preserves residual hearing.

Conclusions:

  • The Nucleus Hybrid-L cochlear implant, by preserving residual low-frequency hearing, substantially improves speech perception in challenging listening conditions.
  • Even minimal residual hearing, particularly below 500 Hz, provides significant benefits when combined with cochlear implant technology.
  • This approach offers a promising advancement for enhancing auditory performance in cochlear implant recipients.