- I look up at a wooden beam on the ceiling, or I look at the office door; both the door and the ceiling are about 2 meters from my face.
- I rotate my face 90 degrees left or right at a rate of about 90 degrees per second. (You may have to adjust this rate to experience the flicker. Too fast or too slow, and you won't experience the flicker.)
- My visual perception (of the edge of the door or ceiling) flickers rather than being smooth and continuous.
- I typically perceive 4 (but sometimes 5 or 6) images during the rotation, which translates to 1/3 second between images or one image per 30 degrees of rotation.
- Ensure that ambient illumination doesn't flicker. Sunlight is suitable. Most electrical light that runs on AC is not.
- I understand that not everyone who tries this experiment will experience this phenomenon.
- This phenomenon also occurs when viewing a sheet of paper held at arm's length and pressed against a contrasting wall (e.g., white paper on brown wall). Rotating the paper instead of your face does not generate the phenomenon.
- The intention of the linked YouTube video is only to show which plane to rotate.
- I recorded a video of my face during the experiment. Reviewing the video, I see no eye movement.
Is there any research on this phenomenon? (I have been unable to find anything on it, perhaps because I don't know the proper terminology.)