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Related Concept Videos

Neuroplasticity01:01

Neuroplasticity

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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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Auditory Pathway01:15

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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.
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Plasticity00:58

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Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
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The Cochlea01:13

The Cochlea

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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.
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Perceiving Loudness, Pitch, and Location01:21

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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.
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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

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A Method to Study Adaptation to Left-Right Reversed Audition
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Auditory map plasticity: diversity in causes and consequences.

Christoph E Schreiner1, Daniel B Polley2

  • 1Coleman Memorial Laboratory, UCSF Center for Integrative Neuroscience, University of California at San Francisco, San Francisco, CA 94143, USA.

Current Opinion in Neurobiology
|February 5, 2014
PubMed
Summary
This summary is machine-generated.

Auditory cortical maps change with experience, revealing new insights into sensory plasticity. These findings enhance our understanding of hearing, learning, and cognitive functions.

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Area of Science:

  • Neuroscience
  • Auditory Neuroscience
  • Sensory Plasticity

Background:

  • Auditory cortical maps are crucial for understanding sensory plasticity.
  • Previous research focused on the expression, mechanisms, and consequences of this plasticity.

Purpose of the Study:

  • To review recent advancements in auditory cortical map plasticity.
  • To explore how auditory experience shapes sound representations in the brain.

Main Methods:

  • Literature review of recent studies on auditory plasticity.
  • Analysis of mechanisms driving changes in cortical maps.
  • Interpretation of plasticity effects on behavior and cognition.

Main Results:

  • New insights into the mechanisms of auditory map changes.
  • Refined interpretations of plasticity's consequences for behavior and learning.
  • Emphasis on organizational principles in auditory cortex processing.

Conclusions:

  • Auditory experience significantly transforms central auditory pathway representations.
  • Understanding map plasticity is key to interpreting hearing and cognitive functions.
  • Further research on organizational principles will illuminate the role of plasticity in hearing.