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Related Concept Videos

Perception of Sound Waves01:01

Perception of Sound Waves

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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...
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Sensory Modalities01:15

Sensory Modalities

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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
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Auditory Perception01:17

Auditory Perception

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

Perceiving Loudness, Pitch, and Location

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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...
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Introduction to Special Senses01:26

Introduction to Special Senses

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Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
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Hearing01:31

Hearing

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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: Apr 18, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
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Multisensory integration: how sound alters sight.

Jess R Kerlin1, Kimron L Shapiro1

  • 1School of Psychology, University of Birmingham, Birmingham, B155 2TT, UK.

Current Biology : CB
|January 21, 2015
PubMed
Summary

Auditory stimuli can change visual perception. This study reveals that 10 Hz brain oscillations in the visual system create a specific time window for combining sound and sight information.

Area of Science:

  • Neuroscience
  • Sensory Integration
  • Auditory-Visual Perception

Background:

  • Cross-modal interactions, where one sense influences another, are crucial for perception.
  • The temporal dynamics of sensory integration remain incompletely understood.

Purpose of the Study:

  • To investigate the neural mechanisms underlying the rapid influence of auditory information on visual perception.
  • To identify the specific brain oscillations involved in auditory-visual information integration.

Main Methods:

  • Electrophysiological recordings to measure brain activity.
  • Presentation of synchronized and desynchronized auditory and visual stimuli.
  • Analysis of 10 Hz oscillations in the visual system.

Main Results:

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  • 10 Hz oscillations in the visual system were found to modulate the integration of auditory and visual information.
  • The timing of these oscillations defined a critical time window for multisensory integration.
  • Auditory stimuli presented within this window significantly impacted visual perception.

Conclusions:

  • Brain oscillations at 10 Hz play a key role in gating the integration of auditory and visual sensory inputs.
  • This mechanism allows for flexible and rapid updates of visual perception based on auditory cues.