Smart Computers (image) University of Freiburg Share Print E-Mail Caption In order to achieve better brain signal transmission quality, the researchers apply contact gel. Credit Photo: Michael Veit Usage Restrictions The image may only be used with appropriate credit. 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.