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Originally posted by Vandettas
Originally posted by shake101
reply to post by Vandettas
On the other hand, to a hardcore gamer it will make a significant difference as hardcore gamers typically have better reaction time and a few hundred milliseconds of extra lag can affect your performance
No. Read this again.
when fast response to what's happening on screen is required, it is helpful to claim every advantage possible (especially for relative geezers like us).
Human response time is mitigated by the fact that we are also capable of learning, anticipation and extrapolation. In "practicing," a.k.a. playing a game, we can learn to predict future frames from current state for very small time slices to compensate for our response time. Our previous responses to input and the results that followed can also factor in to our future responses. This is part of the learning curve, especially for FPS games. When input lag is below a reasonable threshold, we are able to compensate without issue (and, in fact, do not perceive the input lag at all).
The larger input lag gets, the harder it gets to do something like aim at a moving target. Our expectation of the effect our input should have is different from what we see. This gets into something that combines reaction time and proprioception (reception of self produced stimulus). I'm not a psychologist, but I would love to see some studies done on how much input lag people can compensate for, where it starts to be uncomfortable (where it just "feels" wrong) and when it becomes an obviously visible phenomenon. In digging around the net, I've seen a few game developers conjecture that the threshold is about 100 milliseconds, but I haven't found any actual data on the subject. At the same time, 100 milliseconds (or maybe something like 1/2 reaction time?) seems a pretty reasonable hypothesis to me.