test subject in EEG cap (IMAGE) Drexel University Caption Researchers prepare a test subject by dispensing conductive electrode gel into the electrodes in an EEG cap. Credit Drexel University Usage Restrictions Please credit if used 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.