We had such a great response to our first Eye Tricks and Brain Teasers post that we wanted to share a few more. Here are a few Optical Illusions we liked.
Motion Induced Blindness: An Illusion of Disappearing Dots
In this demonstration the observer focuses at the flickering green dot in the middle. After about 10 seconds, the observer sees one, two or all three of the static yellow dots arranged at the corners of an imaginary equilateral triangle disappear and then reappear. These disappearances and reappearances continue at random for as long as the observer cares to look.
Motion Induced Blindness (MIB) is a phenomenon of visual disappearance or perceptual illusions observed in the lab, in which stationary visual stimuli disappear as if erased in front of an observer’s eyes when masked with a moving background. The illusion catches the brain ignoring or discarding information. This may be one of the brain’s useful tricks, a deficiency – or perhaps both. An ongoing debate regarding the causes of MIB is still present in today’s vision research, however the purely attentional mechanism explanation has been rejected and new theories were put forward.
The Color Text Brain Teaser
This brain teaser is great for children and adults alike. Say the name of the color of each word, and not the color named by the word. So if you saw Blue you would say “Red”. We strongly recommend doing this aloud in front of someone who can see the page and check you as you’re likely not to notice when you make a mistake.
White Purple Gray Yellow Purple Gray Yellow
White Gray Green Purple Blue Gray Red
White Gray Pink Purple Yellow Purple Gray
White Purple White Red Yellow Purple Orange
Gray Purple Yellow Orange Yellow Purple Orange
Yellow Orange Yellow Blue Yellow Blue White
Purple White Purple Red Gray Pink Green
We hope you had fun! Let us know how you did and if you have any Eye Tricks and Brain Teasers you’d like to share with us.
For more see our original post, Eye Tricks and Brain Teasers.