Have you ever tried this very famous optical illusion which may be seen in two ways: as a duck or as a rabbit?
Even after 100 years since it was first created, this image is once again making a huge reaction after being shared on social media.
Which was the one that you noticed first? It really doesn’t matter…
And, did you see the other one?
And now the most important question – how fast can you switch between the two visions.
Most of the people at first sees the duck and after that they may switch between the two versions, but the real question is: how fast you can switch between them two?
This duck-rabbit drawing was first used by the American psychologist Joseph Jastrow in 1899, to make the point that perception is not only what one sees, but it’s also a mental activity.
The faster you can do this this, the quicker your brain works and the more creative you are, the research suggested.