Press photo (IMAGE) Karolinska Institutet Caption Last author Elena Rodriguez-Vieitez, senior researcher at the Department of Neurobiology, Caring Sciences and Society, Karolinska Institutet. Credit Amit Kumar 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.