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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...

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Related Experiment Video

Updated: Sep 25, 2025

Mapping the After-effects of Theta Burst Stimulation on the Human Auditory Cortex with Functional Imaging

Mapping the After-effects of Theta Burst Stimulation on the Human Auditory Cortex with Functional Imaging

Published on: September 12, 2012

Auditory experience modulates fronto-parietal theta activity serving fluid intelligence.

Elizabeth Heinrichs-Graham^1,2,3, Elizabeth A Walker⁴, Brittany K Taylor^1,2,3

¹Cognitive and Sensory Imaging Laboratory, Institute for Human Neuroscience, Boys Town National Research Hospital, 14090 Mother Teresa Ln, Boys Town, NE 68010, USA.

Brain Communications

|April 28, 2022

Summary

Children with hearing loss show altered brain activity in early processing stages. Greater hearing aid use is linked to reduced fronto-parietal network activity, suggesting adaptive neural changes.

Keywords:

audiology hearing aids neurophysiology non-verbal cognition oscillations

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Last Updated: Sep 25, 2025

Mapping the After-effects of Theta Burst Stimulation on the Human Auditory Cortex with Functional Imaging

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Published on: September 12, 2012

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Published on: March 10, 2017

Area of Science:

Neuroscience
Developmental Psychology
Audiology

Background:

Children with hearing loss face risks for language and academic delays.
Previous research on cognitive function in hearing loss has yielded mixed results.
No studies have investigated whole-brain neural dynamics of fluid intelligence in children with hearing loss.

Purpose of the Study:

To examine the impact of hearing loss on neural dynamics of abstract reasoning.
To compare brain activity in hard-of-hearing children versus normal-hearing peers.
To assess the relationship between hearing aid use and neural activity.

Main Methods:

Magnetoencephalography (MEG) was used to measure brain activity.
Participants included children with and without hearing loss.
Neural dynamics of fluid intelligence were analyzed during abstract reasoning tasks.

Main Results:

Children who are hard of hearing exhibited elevated occipital and parietal theta activity during early stimulus evaluation.
Increased hearing aid use correlated with reduced activity in the fronto-parietal network.
No significant differences in alpha activity were found between groups or with hearing aid use.

Conclusions:

Auditory experience differences significantly alter neural dynamics in initial stimulus processing for fluid intelligence in children.
Hearing loss impacts early stages of cognitive processing.
Hearing aid use may be associated with neural network adjustments.