Electrode Cap (IMAGE) Michigan State University Caption A cap worn by subjects in a Michigan State University experiment picks up EEG signals at the scalp; the signals are then transmitted via optical cable to a computer where the data is stored for analysis. The experiment looks at how people learn from their mistakes. Credit Michigan State University 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.