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Related Concept Videos

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.
Auditory Perception01:17

Auditory Perception

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 cochlea, a...
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...

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Related Experiment Video

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P50 Sensory Gating in Infants
12:55

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Published on: December 26, 2013

Selective attention in normal and impaired hearing.

Barbara G Shinn-Cunningham1, Virginia Best

  • 1Hearing Research Center, Departments of Cognitive and Neural Systems and Biomedical Engineering, Boston University, Boston, MA 02421, USA. shinn@cns.bu.edu

Trends in Amplification
|November 1, 2008
PubMed
Summary

Listeners with hearing loss (HL) struggle in social settings because peripheral hearing deficits impair auditory object formation and selective attention. This hinders their ability to focus on conversations amidst background noise.

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Last Updated: Jun 28, 2026

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Published on: July 5, 2015

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Published on: January 25, 2016

Area of Science:

  • Auditory Neuroscience
  • Psychoacoustics
  • Communication Sciences

Background:

  • Listeners with hearing loss (HL) frequently report communication difficulties in social environments.
  • Understanding how normal-hearing listeners manage complex acoustic scenes is crucial for identifying deficits in HL.

Purpose of the Study:

  • To review the mechanisms enabling normal-hearing listeners to focus attention in social settings.
  • To explore how peripheral hearing deficits in HL listeners may disrupt these attentional mechanisms.

Main Methods:

  • Review of experimental findings on selective attention in normal-hearing listeners.
  • Analysis of how peripheral auditory processing impacts auditory object formation and attention.

Main Results:

  • Selective attention relies on analyzing acoustic scenes and forming perceptual auditory objects.
  • HL listeners may have impaired auditory object formation due to peripheral encoding deficits.
  • Peripheral degradation affects auditory cue salience (e.g., location, pitch) and increases processing time, hindering rapid attention switching.

Conclusions:

  • Peripheral hearing deficits in HL listeners likely lead to interrelated problems in auditory object formation and selective attention.
  • These deficits challenge the ability of HL listeners to communicate effectively in noisy social settings.
  • Impaired ability to filter competing sounds and utilize memory further exacerbates communication challenges for HL listeners.