Erik Jorgensen, University of Utah (IMAGE) University of Utah Caption Biologist Erik Jorgensen, scientific director of the Brain Institute at the University of Utah, in his laboratory. Jorgensen and colleagues discovered that that simple subatomic particles known as protons can act like neurotransmitters in round worms. Credit Wayne Davis, University of Utah. Usage Restrictions None 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.