We definitely are seeing things faster than 24 Hz, or we wouldn’t be able to tell a difference in refresh rates above that.
Edit: I don’t think we have a digital, on-off refresh rate of our vision, so fps doesn’t exactly apply. Our brain does turn the ongoing stream of sensory data from our eyes into our vision “video”, but compared to digital screen refresh rates, we can definitely tell a difference between 24 and say 60 fps.
People looking at a strobing light, start to see it as just “on” (not blinking anymore) at almost exactly 60Hz.
In double blind tests, pro gamers can’t reliably tell 90fps from 120.
There is however, an unconscious improvement to reaction time, all the way up to 240fps. Maybe faster.
However, when the modulated light source contains a spatial high frequency edge, all viewers saw flicker artifacts over 200 Hz and several viewers reported visibility of flicker artifacts at over 800 Hz. For the median viewer, flicker artifacts disappear only over 500 Hz, many times the commonly reported flicker fusion rate.
The real benefit of super high refresh rates is the decrease in latency for input. At lower rates the lag between input and the next frame is extremely apparent, above about ~144hz it’s much less noticable.
The other side effect of running at high fps is that when heavy processing occurs and there are frame time lags they’re much less noticable because the minimum fps is still very high. I usually tell people not to pay attention to the maximum fps rather look at the average and min.
I think i read that fighter pilots need to be able to identify a plane in one frame at 300 fps, and that the theoretical limit of the eye is 1000+ fps.
Though, whether the brain can manage to process the data at 1000+ fps is questionable.
We definitely are seeing things faster than 24 Hz, or we wouldn’t be able to tell a difference in refresh rates above that.
Edit: I don’t think we have a digital, on-off refresh rate of our vision, so fps doesn’t exactly apply. Our brain does turn the ongoing stream of sensory data from our eyes into our vision “video”, but compared to digital screen refresh rates, we can definitely tell a difference between 24 and say 60 fps.
People looking at a strobing light, start to see it as just “on” (not blinking anymore) at almost exactly 60Hz.
In double blind tests, pro gamers can’t reliably tell 90fps from 120.
There is however, an unconscious improvement to reaction time, all the way up to 240fps. Maybe faster.
It seems to be more complicated than that
The real benefit of super high refresh rates is the decrease in latency for input. At lower rates the lag between input and the next frame is extremely apparent, above about ~144hz it’s much less noticable.
The other side effect of running at high fps is that when heavy processing occurs and there are frame time lags they’re much less noticable because the minimum fps is still very high. I usually tell people not to pay attention to the maximum fps rather look at the average and min.
Yeah it’s not like frames from a projector. It’s a stream. But the brain skips parts that haven’t changed.
I think i read that fighter pilots need to be able to identify a plane in one frame at 300 fps, and that the theoretical limit of the eye is 1000+ fps.
Though, whether the brain can manage to process the data at 1000+ fps is questionable.
I’m using part of this comment to inform my monitor purchases for the rest of my life.
New 1,200 Hz displays? Well, it did say 1,000-plus…
Generally humans don’t perceive a difference above 60 Hz.
Completely untrue and not even up for debate. You’d know this if you had ever used a high-refresh rate display.
Let me guess, you’ve also bought a Gamer Chair to go with your overpriced 144 Hz display.
So, have you actually used a 144 Hz display yourself?
Yes, I have observed a complete lack of improvement.