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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.
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...
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...
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...
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...

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Related Experiment Video

Updated: Jul 10, 2026

Motion-Acuity Test for Visual Field Acuity Measurement with Motion-Defined Shapes
06:25

Motion-Acuity Test for Visual Field Acuity Measurement with Motion-Defined Shapes

Published on: February 23, 2024

Vision affects how fast we hear sounds move.

Joan López-Moliner1, Salvador Soto-Faraco

  • 1Grup d'Atenció, Acció i Percepció, GRNC, Parc Científic de Barcelona, Universitat de Barcelona, Catalonia, Spain. j.lopezmoliner@ub.edu

Journal of Vision
|November 14, 2007
PubMed
Summary

Visual motion significantly impacts auditory speed perception. This effect stems from visual velocity, not earlier motion components, and can be modeled as a weighted average.

Area of Science:

  • Neuroscience
  • Auditory Perception
  • Visual Perception
  • Multisensory Integration

Background:

  • Existing research details cross-modal interactions in motion direction perception and unimodal visual speed processing.
  • Multisensory contributions to auditory speed perception are not well understood.

Purpose of the Study:

  • To investigate the influence of visual motion information on auditory speed perception.
  • To determine if visual velocity or earlier visual motion components drive this cross-modal influence.

Main Methods:

  • Psychophysical experiments were conducted to measure auditory speed perception under varying visual motion conditions.
  • Data were analyzed to assess the relationship between visual motion parameters and perceived auditory speed.

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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

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Motion-Acuity Test for Visual Field Acuity Measurement with Motion-Defined Shapes
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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients

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Main Results:

  • Visual motion information profoundly influences the perception of auditory speed.
  • This influence is specifically mediated by visual velocity, not by earlier frequency-based visual motion components.
  • A weighted average model accurately describes how visual speed information affects auditory speed perception.

Conclusions:

  • Visual information plays a critical role in shaping auditory speed perception.
  • The brain integrates visual velocity signals into the computation of auditory speed.
  • This finding advances our understanding of multisensory integration in motion perception.