Andreas Josefsson and Karin Welén (IMAGE) University of Gothenburg Caption Andreas Josefsson, Umeå University, and Karin Welén, University of Gothenburg. Credit Photo by Mattias Pettersson and Ida Wilén. Usage Restrictions For editorial use when publishing news and other stories linked to the universities. Not for commercial use. License Original 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.