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Related Concept Videos

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...
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...
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 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...
Neuroplasticity01:01

Neuroplasticity

Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.

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Related Experiment Video

Updated: Jun 13, 2026

A Method to Study Adaptation to Left-Right Reversed Audition
07:14

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

Learning-induced plasticity in human audition: objects, time, and space.

Lucas Spierer1, Marzia De Lucia, Fosco Bernasconi

  • 1Neuropsychology and Neurorehabilitation Service, Department of Clinical Neuroscience, Vaudois University Hospital Center and University of Lausanne, Switzerland.

Hearing Research
|May 1, 2010
PubMed
Summary
This summary is machine-generated.

This study explores how the human auditory system learns and processes sound object, spatial, and temporal information. Findings reveal common brain mechanisms for auditory plasticity and spatial representation.

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Related Experiment Videos

Last Updated: Jun 13, 2026

A Method to Study Adaptation to Left-Right Reversed Audition
07:14

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Published on: October 29, 2018

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07:52

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Published on: March 13, 2026

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06:34

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

Area of Science:

  • Neuroscience
  • Auditory Perception
  • Cognitive Science

Background:

  • The human auditory system processes object, spatial, and temporal sound information through interconnected pathways.
  • Understanding learning-induced plasticity in these pathways is crucial for auditory neuroscience.

Purpose of the Study:

  • To investigate how learning-induced plasticity affects auditory pathways.
  • To identify common mechanisms underlying auditory plasticity.
  • To explore the representation of sound object identity, sequence, and spatial location.

Main Methods:

  • Review of experiments on auditory object discrimination and temporal hierarchies.
  • Analysis of brain region activity during sound processing and learning.
  • Investigation of spatial auditory stimulus encoding and representation.

Main Results:

  • A temporal hierarchy exists for sound object discrimination, involving widespread temporal and frontal brain regions.
  • Learning-induced plasticity often manifests as repetition suppression in common brain areas.
  • Lateralized brain responsiveness is critical for perceiving the order of auditory spatial stimuli.
  • Temporal and parietal structures interact for spatial information encoding within 300 ms.

Conclusions:

  • The human auditory system exhibits a hierarchical organization for processing sound features.
  • Common neural mechanisms support auditory learning and plasticity across different sound attributes.
  • These findings offer insights into auditory function and potential neurorehabilitation strategies.