Demo of Brain-Controlled Hearing Aid (2019) (video) The Zuckerman Institute at Columbia University Share Print E-Mail Loading video... Caption This technology works by mimicking what the brain would normally do. First, the device automatically separates out multiple speakers into separate streams, and then compares each speaker with the neural data from the user's brain. The speaker that best matches a user's neural data is then amplified above the others. Credit Nima Mesgarani/Columbia University's Zuckerman Institute Usage Restrictions Please contact Zuckerman Institute press office for use permissions. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.