Header image (IMAGE) Aalto University Caption Researchers from Aalto University and the University of Helsinki studied how real-world shocks affect online discussions, and found that disinformation reinforces polarization. Credit Matti Ahlgren/Aalto University Usage Restrictions None 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.