Peter Christenson (IMAGE) University of Minnesota Caption Peter Christenson, an electrical and computer engineering postdoctoral researcher and the first author of a new study focused on improving detection of neurodegenerative diseases, holds glass capillary tubes like those used in the study. Photo credit: Thomas and Tonya Seiler, MNPRO Credit Thomas and Tonya Seiler, MNPRO Usage Restrictions N/A 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.