Hm. I used to run an experiment at an Engineering Fair at school. Oscilloscope, random pulse, trigger button, time the reaction time. Some fast kids could get it down to the double-digits, even 20-30 ms, pressing that button after seeing the pulse. If I remember right.
That sounds like an interesting experiment. Is it possible they were predicting the pulse? I could imagine a scenario where they would predict and at times get it wrong and press before the pulse, but at times the timing could work out just right such that after accounting for all human latency, the press landed just after the pulse coincidentally. What other factors did your experiment account for?
Hmm. Using the site that was the first Google result[0] to test myself and I could never get anything below 220ms. Could you be misremembering by a factor of 10?
Yeah it can't have been so low can it? But it was double digits. Anyway, the fastest ones would put their eye right up to the scope, so the pulse would have the largest signal right into their eye. I thought that was clever.