Purdue University Researchers (image) Purdue University Caption Kenneth S. Henry (from left), a postdoctoral researcher, and Michael G. Heinz, an associate professor, of Purdue's Department of Speech, Language and Hearing Sciences found that background noise causes the ears of those with hearing impairments to work differently. The findings are published as a Brief Communication in Nature Neuroscience. Credit Mark Simons, Purdue University Usage Restrictions None 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.