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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: Jan 10, 2026

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Published on: July 5, 2015

A Brain-Computer Interface for Improving Auditory Attention in Multi-Talker Environments.

Stephanie Haro^1,2,3, Christine Beauchene¹, Thomas F Quatieri¹

¹Human Health and Performance Systems Group, MIT Lincoln Laboratory, Lexington, MA 02421, USA.

IEEE Access : Practical Innovations, Open Solutions

|November 21, 2025

Summary

This summary is machine-generated.

This study used a closed-loop neurofeedback system to improve auditory attention decoding (AAD). The system reduced neural tracking of the ignored speaker, aiding listeners in multi-talker environments.

Keywords:

Auditory attention auditory attention decoding brain-computer interface electroencephalogram speech perception

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Published on: October 24, 2012

Assessment and Communication for People with Disorders of Consciousness

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Related Experiment Videos

Last Updated: Jan 10, 2026

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Published on: July 5, 2015

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

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

Published on: October 24, 2012

Assessment and Communication for People with Disorders of Consciousness

Assessment and Communication for People with Disorders of Consciousness

Published on: August 1, 2017

Area of Science:

Neuroscience
Auditory Perception
Brain-Computer Interfaces

Background:

Auditory attention decoding (AAD) algorithms aim to identify listeners' focus in noisy environments.
Current AAD methods struggle with distractors, impacting tracking accuracy.
Listeners with attention deficits require improved methods for focus in complex auditory scenes.

Purpose of the Study:

To enhance real-time auditory attention to a target speaker.
To investigate the neural mechanisms underlying attention improvement.
To develop and evaluate a closed-loop neurofeedback system for auditory attention.

Main Methods:

Utilized a non-invasive wet electroencephalography (EEG) brain-computer interface (BCI).
Implemented a closed-loop system decoding auditory attention in real-time.
Provided acoustic feedback based on attention decoding accuracy, attenuating the ignored talker.

Main Results:

Demonstrated significant suppression of neural tracking for the unattended talker post-neurofeedback.
Observed a reduction in decoding of the ignored speaker's neural signals.
Did not find a statistically significant increase in neural tracking of the attended speaker.

Conclusions:

Established a performance benchmark for a closed-loop auditory attention neurofeedback system.
Showcased the potential of neurofeedback to reduce interference from unattended speakers.
Laid the groundwork for future clinical trials on auditory attention training.