This held true for me. I tried staring at the red and green ones alternating every few seconds for a minute or so before I got bored. After a few times I starte

This held true for me. I tried staring at the red and green ones alternating every few seconds for a minute or so before I got bored. After a few times I started seeing what I can best describe as shadows of green horizontal bars when looking at the red image. I was rather disappointed.