I zoomed in on the picture on the girl, if you look at her eyes they are completely open, meaning the black centers dam near cover all color in her eyes.
This is mostly found in people in trances or people under lsd/mescaline. And of coarse people in the dark.
When I was in Vietnam, I was able to highly develop a sixth sense after (going on a trip) the power to know whats going to happen, to know where the enemy will pop out at, to read peoples thoughts. I became an animal that was highly tuned into my surroundings. Not that I could pick the winning lotto number or anything like that, but when your life is on the line I believe one can bring out this sense very easily.
It is a fact, that most all wild animals can sense when an earthquake is coming. I have an old Hindu book somewhere that goes into these powers of the mind, I might post some pages out of it.
Anyway I don’t want to get too far out man! But I will say this, there is more that we don’t know about the human mind, then we do know. Our American culture/diet and lifestyle holds most back from ever experiencing these extra senses.