a) 24FPS are easily detected as flickering; our true flicker fusion frequency is found around 60-80Hz.
b) Perceptual time discretisation heavily depends on the modality and even the task in question. For motion extraction, this "limit" may be much lower or higher than for olfactory tasks or memory retrieval. Overall, it's really hard to put a time delta on neural processes -- after all, biological systems are more or less continuous.
> 24FPS are easily detected as flickering; our true flicker fusion frequency is found around 60-80Hz.
Shooter player here. This is a laughable statement. Pretty much anybody can tell the difference between 60hz and 120hz - even the mouse cursor moves smoother. Good players try to play at higher than 120hz rates, because it does make the difference.
Those statements are not necessarily in contradiction. When I quickly move the mouse in a circle on my computer I see the pointer displayed at several, quite far away, locations at the same time. It looks like the same time anyway because of temporal fusion.
If the mouse were moving continuously you would be able to see the full trace of its path and not just a few discrete locations along the way. A higher frequency would get closer to this.
Also, in an interactive scenario, the frame rate will impact how quick you get feedback on your actions.
With 60Hz, the frames each take 17ms, meaning the next frame will be on average 8.3 ms away. Thus if you perform an ingame action, you will get visual feedback in ~8.3ms, whereas with 120Hz it will come in 4.1ms.
There is probably some kind of buffering done, so likely your action will not end up in the currently drawn frame but the one after that. So the response will on average come 3/2 frames after your action: 25ms later for 60Hz v.s. 12.5 ms for 120Hz. 10ms faster reaction time should be noticeable.
Hmmm, their statement doesn't say that nobody can but says that some people can't. Those for whom the value is 60Hz or less. What their statement does say is that around 80Hz is a value that is indistinguishable from anything higher
I imagine they both do something VSync, however, does not change the refresh rate of the pixels on the screen. It changes the refresh rate of pixels in the buffer. Monitors can only update each pixel at a given rate and that's determined in hardware first, software second.
a) 24FPS are easily detected as flickering; our true flicker fusion frequency is found around 60-80Hz.
b) Perceptual time discretisation heavily depends on the modality and even the task in question. For motion extraction, this "limit" may be much lower or higher than for olfactory tasks or memory retrieval. Overall, it's really hard to put a time delta on neural processes -- after all, biological systems are more or less continuous.