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Old 03-25-2011, 05:37 PM
Flying Pencil Flying Pencil is offline
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Join Date: Jan 2008
Location: Houston, TX
Posts: 403
Question Simple solution to deal with Epilepsy attack (PSE)?


It is good 1C is considerate to those who surfer from PSE (Photosensitive epilepsy), but something does not seem correct.

You mentioned "tests", can you please describe what kind of tests?
Is it possible the test created artificial conditions to promote PSE attacks?

I myself have play air combat sims for 28 years as well as a few space combat sims, and I know others who have done the same, and this is the first time I ever heard of anyone being impacted by PSE in an air combat game. Yes, I have heard of people with PSE reaction to Defender, Doom, Unreal, but those are not flight sims.

PSE triggers are very specific:

The visual trigger for a seizure is generally cyclic, forming a regular pattern in time or space. Flashing lights or rapidly changing or alternating images (as in clubs, around emergency vehicles, in action movies or television programs, etc.) are an example of patterns in time that can trigger seizures, and these are the most common triggers. Static spatial patterns such as stripes and squares may trigger seizures as well, even if they do not move. In some cases, the trigger must be both spatially and temporally cyclic, such as a certain moving pattern of bars.
As a pilot myself, their is awareness made about PSE, but I have never experienced a test for it as part of my medical examination.

That said, the biggest issue for pilots is for single engine propeller aircraft, during landing into the sun the RPM of the propeller is about 700~1200 RPM will cause discomfort.
I have to emphasis during landing, becuase in normal cruise fight the propeller is 2000~2600 RPM presents no issue at all during flight into the sun.

It is important to note the real world experience is different then how a computer renders the virtual world, and that be the key.

Luthiar post suggest it was a simple test and a very rushed fix rather then a careful systematic examination of the root cause and adjustments. Simply changing the propeller motion could be all that is needed (in a game I play regularly play the prop blade becomes translucent, hardly blocks any light).
While no time to do this now, I hope in the future a better solution can be found.


Last edited by Flying Pencil; 03-25-2011 at 05:45 PM.
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