The connection between what you see and what you process mentally (and more importantly vice versa) is an incredible demonstration of the power of the human mind. Scientists refer to this as the “up-down connection” and alternatively as the “down-up connection” It is proven that the ability of the mind to process information that the eyes see is also seen in reverse by the ability to see something that the mind has processed or conjured without even really seeing it with your eyes.

Taken to the extreme cases this is prevalent in people with extreme cases of delusional disorders, but to some extent we all do this in daily life. This is important to note because it also means that we manifest mentally can affect how we view different objects and situations. Just an interesting little fact for you to consider…

Here is a selection of extremely interesting stress test, brain exercises and optical illusions. Click on each title to view that test. Although these tests are definitely fun, they also illustrate the immense power of the human mind and the way that it perceives different things.

So go on and entertain yourself and your friends with these free brain tests and see how the different people react. You will be amazed by what you find here!

12 Free optical illusions:

Do you think that circle is expanding?
Focus on the center of circle to see the Optical illusion
When you focus on the center point you will see that the circle is expanding
Focus on the center of circle to see the Optical illusion
Focus the center of this image and this circle becomes in motion
To see the optical illusion focus on the center of the image and see that circle becomes in motion
These rings are in motion
This is the optical illusion of rings in motion
See the outer edges of the circle fading away
Outer edges are fading away from the circle
Do you think the lines are not straight?
See the image to see that the optical illusion of lines.Here you feel that lines are not straight
Can you believe its static?
This illusion shows the image is static or not.
All of the lines in this are perfectly straight, even though the image appears to be bulging out of the screen
This optical illusion is for showing the lines are perfectly straight,but when you see that you will be feeling like the lines are bulging out.
How many black dots do you see?
There are no dots in the image
Free optical illusions
Free optical illusion of face
There is no triangle
There is no triangle here
FREE STRESS TEST
This is test to check your stress