Soccer Headers Study Participant (image) University of Delaware Share Print E-Mail Caption Players were asked to walk on a foam pad with their eyes closed. They were tested under two conditions - one with electrodes placed behind their ears to make them feel like they were falling sideways and another without the stimulation. Credit University of Delaware Usage Restrictions None 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.