Reactive Video (IMAGE) Lancaster University Caption Using Reactive Video to learn Tai Chi. The video slows to match the speed of the user and additional visual aids are added to help guide the user's movements Credit Chris Clarke Usage Restrictions Only to be used alongside stories related to this research 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.