Tricks to play with your Brain

Confuse your photo reception

Stare at the central point (plus sign) of the black and white picture for atleast 30 seconds and then look at a wall near you, you will see a bright spot, twinkle a few times, what do you see? or even who do you see?

Stare at the eye of the red parrot while you slowly count to 20, then immediately look at one spot in the empty birdcage. The faint, ghostly image of a blue-green bird should appear in the cage. Try the same thing with the green cardinal, and a faint magenta bird should appear.
When an image is looked at for a length of time (usually around 30 seconds) and then replaced with a white field, one type pf an effect called an afterimage can be seen. The common explanation given for an afterimage is that the photoreceptors (rods and cones) in the eye become “fatigued”, and do not work as well as the those photoreceptors that were not affected (the “fatigue” is actually caused by the temporary bleaching of the light sensitive pigments contained within the photoreceptors) This results in the information that is provided by the photoreceptors not being in balance, causing the afterimages to appear. As the photoreceptors become less “fatigued”, which takes between ten and thirty seconds, the balance is recovered, resulting in the afterimage disappearing.


Now do another trick to confuse your photoreceptors. This will temporarily blind you from one eye (for around 30 seconds and don’t worry it is of no harm) Go into a room, shut the door and turn out the lights so that the room is mostly dark. Wait until your eyes adapt to the darkness. You should be able to make out the basic shapes of the room from the tiny bit of light coming in from under the door. Next, close your right eye and cover it with your hand. Turn the light on, keeping your eye closed and covered. Leave the light on for about a minute or until your left eye has adapted to the light. Uncover your eye and look around the darkened room.
What do you see? What you might experience is an illusion discovered by researcher Uta Wolfe in which it seems that your left eye is closed, even though it is open.
The explanation to this is the visual cycle that takes time to be adapted, when it is not adapted as for the left eye, the eye will send wrong signals to the brain thus image would be darkened for the left eye until it adapts.