Brain graphic (IMAGE) Indiana University Caption A representation of a brain "event", as recorded with fMRI. Frames, which are about 6 seconds apart, show correlated brain signals before, during, and after a brief burst of activity. Credit Indiana University Usage Restrictions No restrictions. License Public Domain 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.