Performance Test for Neural Interfaces (IMAGE) University of Freiburg Caption Analysis of characteristics of a microelectrode for receipt of electrical nerve cell signals at body temperature, photographed using a scanning electron microscope (left). Credit Illustration: Maria Asplund Usage Restrictions None License Licensed 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.