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Related Concept Videos

Hearing

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.

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Related Experiment Video

Updated: May 13, 2026

Stimulating the Lip Motor Cortex with Transcranial Magnetic Stimulation

Stimulating the Lip Motor Cortex with Transcranial Magnetic Stimulation

Published on: June 14, 2014

Real-time brain-controlled selective hearing enhances speech perception in multi-talker environments.

Vishal Choudhari^1,2, Maximilian Nentwich^3,4, Sarah Johnson^3,4

¹Department of Electrical Engineering, Columbia University, New York, NY, USA.

Nature Neuroscience

|May 11, 2026

Summary

This summary is machine-generated.

This study demonstrates a novel brain-controlled hearing system that enhances speech understanding in noisy environments. The auditory attention decoding (AAD) system dynamically amplifies desired speech, improving intelligibility and reducing listening effort for users.

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Last Updated: May 13, 2026

Stimulating the Lip Motor Cortex with Transcranial Magnetic Stimulation

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Published on: June 14, 2014

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Published on: September 7, 2022

Area of Science:

Neuroscience
Audiology
Biomedical Engineering

Background:

Speech comprehension in noise is challenging for many.
Conventional hearing aids amplify all sounds, failing to isolate target speakers.
Auditory attention decoding (AAD) shows promise but lacks real-time perceptual validation.

Purpose of the Study:

To implement and validate a closed-loop auditory attention decoding system for real-time speech enhancement.
To assess the perceptual benefits of a brain-controlled hearing system.
To establish a performance benchmark for auditory brain-computer interfaces.

Main Methods:

Utilized high-resolution intracranial electroencephalography (iEEG) in neurosurgical patients.
Developed a closed-loop system to decode auditory attention from brain signals.
Dynamically amplified the attended talker based on real-time AAD.

Main Results:

The system achieved high decoding fidelity for dynamic talker amplification.
Demonstrated significant improvements in speech intelligibility.
Showed a reduction in listening effort and consistent user preference.
Successfully tracked both instructed and self-initiated attention shifts.

Conclusions:

Real-time, brain-controlled hearing systems can provide tangible perceptual benefits.
This work validates AAD as a practical solution for personalized assistive hearing.
Establishes a benchmark for future auditory brain-computer interface development.