Sand Pile Model of Brain Dynamics (IMAGE) Washington University in St. Louis Caption Does the brain respond to input the same way a sand pile responds to the addition of more sand? New work shows that follows these dynamics even when it is processing sensory input. Credit Courtesy of Andrew Dunn Usage Restrictions please credit 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.