Ear Sounds (IMAGE) Duke University Caption Participants tracked a green dot on the screen while researchers listened to the sounds made in their ear canals using microphone-embedded earbuds. Credit Meredith Schmehl/Duke University Usage Restrictions none License Original content 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.