ROSA Scholar Jonathan Chia (IMAGE) Singapore Management University Caption ROSA scholar, Mr Jonathan Chia, presenting on his research on the profiles of social activity and depression trajectories among older adults. Credit Singapore Management University Usage Restrictions Please include image credit. 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.