Jazz Guitar Player Improvising (IMAGE) Drexel University Caption This is a jazz guitar player improvising while his brain activity (EEG) is recorded. 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.