Distinct Events (image) Brown University Share Print E-Mail Caption On average (top), a research participant might seem to produce a sustained, elevated rhythm of beta, but a look trial by trial (lower rows) shows that beta emerges in discrete bursts. Credit Shin et. al./Brown University Usage Restrictions with credit Share Print E-Mail 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.