Sleep Homeostat Research (VIDEO) University of Oxford 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 Lead authors Drs. Diogo Pimental and Jeff Donlea describe their research into what causes the sleep homeostat -- a 'switch' in the brain -- to flip and wake us up, and the discovery of the 'Sandman' ion channel. It includes a clip of a fly being woken up by optogenetically stimulated dopamine release (starts 1'10"), and an animation explaining how Sandman works (starts 2'09"). Credit Centre for Neural Circuits and Behaviour/ University of Oxford 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.