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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 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: May 8, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

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Central auditory system plasticity associated with speech discrimination training.

N Kraus, T McGee, T D Carrell

Journal of Cognitive Neuroscience

|August 22, 2013

Summary

This summary is machine-generated.

Listening training significantly altered brain responses to speech sounds. This neurophysiologic change in the central auditory system demonstrates enhanced discrimination of subtle speech differences.

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Last Updated: May 8, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

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Published on: September 7, 2022

Stereotactically-guided Ablation of the Rat Auditory Cortex, and Localization of the Lesion in the Brain

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Published on: October 11, 2017

Area of Science:

Neuroscience
Auditory Neuroscience
Speech Perception

Background:

The brain's ability to discriminate subtle acoustic differences in speech is crucial for language comprehension.
Passively elicited cortical potentials offer a neurophysiological measure of auditory processing.
Understanding the plasticity of auditory processing in adults is important for audiology and speech therapy.

Purpose of the Study:

To investigate the neurophysiological effects of behavioral listening training on the brain's response to speech stimuli.
To determine if training can alter cortical potentials related to the discrimination of small acoustic contrasts.
To examine the plasticity of the central auditory system in response to speech discrimination learning.

Main Methods:

Adult human subjects were presented with two slightly different speech stimuli.
A passively elicited cortical potential was measured as a neurophysiological response.
Behavioral training was implemented to improve discrimination of the speech stimuli.

Main Results:

Behavioral training led to significant changes in the duration of the measured cortical potential.
The magnitude of the cortical potential was also significantly altered by listening training.
These findings indicate a neuroplastic change in response to auditory training.

Conclusions:

Listening training can modify neurophysiological responses in the central auditory system.
The brain's ability to process and discriminate speech sounds, even those at the edge of perception, can be enhanced through training.
This study highlights the plasticity of auditory cortical potentials in adults.