When a person watches a video, his or her eyes naturally follow the action. Since we cannot track your eyes, we would like you to use the mouse to follow a red circle, imitating the movement your eyes would naturally make. This specific experiment is designed to measure the typical delay for tracking objects with a mouse.
This task requires about 2 minutes (also shown below on the video player). When the video ends, a red "Submit HIT" button will appear, which will allow you to submit your results.
Warning: the video cannot be paused, so make sure you can work without interruptions for its entire duration. If you want to preview the clip without submitting results, simply play it before accepting the HIT.