Action units and action descriptors (VIDEO) Kyoto University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Marmoset displays two distinct facial movements called action units. Credit KyotoU/Catia Correia-Caeiro 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.