Oddly I was faster if I concentrated on the vanishing red light (210-220 ms) instead on concentrating the lightening of the green light (240-260 ms).
I also tried out not focus (aren't the rod cells on the edge of your vision faster in detecting movement than the cone cells in the center?), but it didn't amount to much.
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Oddly I was faster if I concentrated on the vanishing red light (210-220 ms) instead on concentrating the lightening of the green light (240-260 ms).
I also tried out not focus (aren't the rod cells on the edge of your vision faster in detecting movement than the cone cells in the center?), but it didn't amount to much.