Sleep Twitches (VIDEO) University of Iowa 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 While the left hindlimb of a sleeping baby rat twitches, researchers record the extensive activity in the area of the rat's brain that is sensitive to twitches of that limb. Credit Videos courtesy of Mark Blumberg. Usage Restrictions None 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.