Helena Gustafsson (IMAGE) Umea University Caption People with depression may be more likely to develop Parkinson's disease, Helena Gustafsson. Credit Umeå University Usage Restrictions This photo may only be used in texts relating to this press release. 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.