Brain Games
Train your cognitive ability – PERCEPTION  III

Train your cognitive ability – PERCEPTION III

The last post was all about perception and if I remember correctly I am in debt with some responses to the exercises I included in the last post.

So let us start first with solving the exercises:

Exercise 1: The picture left shows three geometrical figures. The picture right shows the same figures one after the other. 

Exercise 2: The cylinder seems at its bottom part to become thinner.

Exercise 3: The lines symbolize the optical distance. Things seem to meet when we look at them from a certain distance. 

In this article, I want to show you how elementary cues from our environment are organized through certain laws also called Gestalt Laws. 

Principle 1: Principle of Closeness 

Similar elements are perceived as a group if they are close together.


Principle 2: Principle of Similarity

Similar elements are perceived as a line if they are close together. 


Principle 3: Principle of Continuity

We can guess how the lines will be continued even if we do not see it in the image.


Principle 4: Principle of Unity

Our eyes are used to see a full circle even if in the picture you see a little gap.


Principle 5: Figure and Background

The elements of the picture which have a sharp contour you perceive as a figure the rest is seen as the background.

Consequently, I want you to show some other interesting facts:

Perception of Background and Figure 

We see the shape independently of the border, but we can also see the border independently of the shape.


Perception of Faces

When we try to decipher faces we mainly take account of two criteria: the distance between the eyes and the distance between the nose and mouth. 


Next, we move to the fun part where I invite you to play some interactive games for training your perception!


If you want to play some science-based interactive games to train your perception, I want to invite you to make yourself a profile on They have also a free version, but you can upgrade also to the premium version to make your brain fit like a sneaker!

Looking forward to reading your feedback in the comment section!

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