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Auditory Perception

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 Waves

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...

Depth Perception and Spatial Vision

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.

Perceiving Loudness, Pitch, and Location

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...

Hearing

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 Pathway

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: Jun 14, 2026

A Method to Study Adaptation to Left-Right Reversed Audition

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

Eye-movement-driven changes in the perception of auditory space.

Thérèse Collins¹, Tobias Heed, Brigitte Röder

¹University of Hamburg, Hamburg, Germany. collins.th@gmail.com

Attention, Perception & Psychophysics

|March 30, 2010

Summary

Sensory localization relies on body position and requires transforming sensory data into motor commands. This study reveals how eye movements influence visual and auditory spatial perception, demonstrating that auditory stimuli are remapped across saccades.

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Last Updated: Jun 14, 2026

A Method to Study Adaptation to Left-Right Reversed Audition

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Published on: October 29, 2018

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

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Published on: October 24, 2012

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Published on: October 13, 2018

Area of Science:

Neuroscience
Cognitive Science
Sensory Processing

Background:

Perceptual localization of sensory stimuli is influenced by body position.
Action-oriented tasks necessitate transforming sensory coordinates into a motor reference frame.

Purpose of the Study:

Investigate the role of reference frame changes in visual and auditory spatial cognition.
Examine how eye movements impact spatial localization of visual and auditory stimuli.

Main Methods:

Participants performed saccades to visual or auditory targets.
Localization of probes was compared to remembered target locations.
Saccadic adaptation systematically modified saccade metrics to assess its impact.

Main Results:

Neither visual nor auditory localization depended on saccade endpoint variability, indicating cross-saccade remapping.
Saccadic adaptation introduced biases in transsaccadic visual and auditory localization.
Eye movement information is integrated into both visual and auditory spatial cognition.

Conclusions:

Auditory stimuli are remapped across saccades.
An eye-centered representation of auditory space contributes to normal auditory localization.
Spatial cognition dynamically adapts to motor commands and body position changes.