That is not true at all. In psychological priming tests, subliminal stimuli can be offered in 1 frame on a 100 frames per second framerate and people can still "see" the stimuli. An easier test would be to just plat a PC game like Half-Life 2 on 30 fps locked and 60 fps locked, you'll notice the difference easily.

sry but than your exam isn't worth anything. almost everybody does this wrong. there is a difference between seeing more than 25 fps or just to need 25 fps to see it as fluent movement.

read the link and you see it, they made a test with pilots of the airforce i think. they showed them 250 fps and only one pic had a information and they knew which. only every tenth could say it if you would be right.

Edit: they didn't show them 250 fps they showed them only one pic in 1/220 second. that clearly shows that a human can see an information in less than let's say 1/100 second and not only every fourth time like it should be possible if we only could see 25fps.

I know wolves see at 80FPS, and we can't see as well as them. Whatever link you have, you seem to have mis-interpreted it.

That 250fps video, how long was it shown for? If it was shown for 10 seconds or longer, everyone should have been able to see the picture clearly, and even with a shorter time, people should be able to see a tear or flicker due to an image.

LOL, wolves don't see at 80FPS, that's not how eyes work. Eyes detect light and thus movement, so the more moving objects we perceive, the more change we perceive and the more light, the smoother we movements are. FPS is a digital measure of movement, not an organic one.

And it's very easy to lock the FPS of software. If you don't know that, I suggest to take a more humble attitude when discussing because you obviously have no idea what you are talking about.

I've heard that humans can't notice a difference above 30FPS but it seems that many do notice it clearly, so it must depend on the person.

Yes it is, different animals see light at different frequencies. Owls for instance, which are nocturnal, see at a much higher frequency (I read about 200FPS) because they need to see better to see at night. Different animals can also see furthur into the IR and UV wavebands, and differently shaped eyes allows for quicker exposures (this is why owls, and nocternal animals have big eyes). Vision is very different for each animal.

You should read up about eyes, humans don't continuously see an infinite FPS video. Our brain, like a digital camera, obtains still images at just under 30FPS. It's the change in the images which we view as movement. So if someone is at point A in frame 1 and point B in frame to, we know he moved. We don't notice individual frames because 30FPS is quite a lot. However if you ever watch a video with a subliminal frame, your mind will see the entire image only once if it's flickered fast enough (like the people in the 1/200 second frame video did).

An example. When you drive on the highway next time, look at the rim of a car. Does it sometimes look like it's spinning backwards slowly? It's because the rim has moved nearly a fifth of a rotation (for 5 spoke rims), and our eyes take an image as it's just behind where it was before. Do this 30FPS, and it looks like the tire is spinning backwards.

I don't own a gaming PC, so I'm not aware that you can lock FPS. However on consoles I do notice a difference, that's because FPS drop.

Wrong, wow...people need to stop spreading this misinformation. How is this chemistry? It has more to do with our biology than chemistry.

This. Seriously

People can see A LOT more than 60fps. The MINIMUM fps for a video to look fluid is approximately 25fps

It also depends on the action, and other tricks as motion blur. You can see a 1 fps video of a snail, or a 1 frame per minute video of a tree growing, and it will look fluid.