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Related Concept Videos

Perception of Sound Waves01:01

Perception of Sound Waves

4.6K
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...
4.6K
Sound as Pressure Waves01:17

Sound as Pressure Waves

2.5K
Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
2.5K
Sound Waves01:01

Sound Waves

9.4K
Sound waves can be thought of as fluctuations in the pressure of a medium through which they propagate. Since the pressure also makes the medium's particles vibrate along its direction of motion, the waves can be modeled as the displacement of the medium's particles from their mean position.
Sound waves are longitudinal in most fluids because fluids cannot sustain any lateral pressure. In solids, however, shear forces help in propagating the disturbance in the lateral direction as well....
9.4K
Sound Waves: Resonance01:14

Sound Waves: Resonance

2.7K
Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
2.7K
Sound Waves: Interference00:53

Sound Waves: Interference

3.9K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.9K
Sound Intensity00:58

Sound Intensity

4.1K
The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the...
4.1K

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Neural representation of nouns and verbs in congenitally blind and sighted individuals.

Nature communications·2025
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Preference for animate domain sounds in the fusiform gyrus of blind individuals is modulated by shape-action mapping.

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Related Experiment Video

Updated: Aug 29, 2025

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

419

Rethinking the representation of sound.

Łukasz Bola1

  • 1Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland.

Elife
|September 7, 2022
PubMed
Summary

Blindness causes significant brain rewiring, reorganizing both visual and auditory processing areas. This neural plasticity highlights the brain's remarkable ability to adapt to sensory loss.

Area of Science:

  • Neuroscience
  • Neurobiology
  • Sensory processing

Background:

  • The human brain exhibits plasticity, adapting its structure and function in response to experience and injury.
  • Sensory deprivation, such as blindness, is known to induce changes in brain organization.

Discussion:

  • This study investigates the specific cortical reorganization following blindness.
  • The research focuses on the visual and auditory cortices, key areas for sensory information processing.

Key Insights:

  • Blindness leads to a notable reorganization within the brain's visual and auditory cortices.
  • This reorganization suggests a cross-modal plasticity where areas typically dedicated to vision may be recruited for auditory processing.

Outlook:

Keywords:
auditionbrain plasticityearly blindnessfMRIhumanlate blindnessneurosciencevision

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Last Updated: Aug 29, 2025

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

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Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors
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  • Further research can explore the functional implications of this cortical reorganization for individuals with blindness.
  • Understanding these adaptive mechanisms may inform therapeutic strategies for sensory impairments.