The Scientists Recorded (IMAGE) University of Bonn Caption The scientists recorded subjects' brain waves using up to 70 implanted electrodes. Credit © Photo: Gregor Gast/UKB Usage Restrictions This image may be used together with the press release. 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.