Most artificial light sources
That is they turn on and off repeatedly.
The threshold is usually given as 60 Hz.
But that is a general value.
upon many factors
such as brightness
So as brightness and size of monitors increased.
There is a need to increase the frame
That is happening on many
displays today but not all.
Bridgeman, B. (1998).
Durations of stimuli displayed on video
display terminals: (n-1)/f+persitence. Psychological