I wonder if staring at 40Hz refresh rate screens could produce a similar effect? I have a screen with a flickering backlight at a frequency just outside perception. If I use it for prolonged periods before bed, I can perceive a 'flickering afterglow' for minutes while trying to sleep.
I think that's like playing tetris or 2048 for too long.
(Depending on how long one played, there are overlays of the game in normal vision for quite a while. Or your brain is trying to do the pattern matching of the game to normal objects. (I've seen reports that people's brains were trying to combine cars of the same colour for example.))
Comments
I wonder if staring at 40Hz refresh rate screens could produce a similar effect? I have a screen with a flickering backlight at a frequency just outside perception. If I use it for prolonged periods before bed, I can perceive a 'flickering afterglow' for minutes while trying to sleep.
I think that's like playing tetris or 2048 for too long.
(Depending on how long one played, there are overlays of the game in normal vision for quite a while. Or your brain is trying to do the pattern matching of the game to normal objects. (I've seen reports that people's brains were trying to combine cars of the same colour for example.))