Optical illusions: Your brain sees what it wants to

Date:5 December 2016 Author: Nikky Knijf Tags:, , , ,

Believe it or not, but your brain often “sees” things that are either not there or not important enough to spend time processing. These are called optical illusions.

See, over millennia the human brain has evolved to take shortcuts and rapidly judge the importance of visual stimuli. This means that often we might think that we have an entire perspective, while the reality might be quite different.

YouTube channel AsapSCIENCE explains this using optical illusions in the video above. Check it out. They’ve also created a bonus playlist of all their post videos that discuss optical illusions – this includes the Internet-famous blue-and-black and white-and-gold dress. Be sure to check it out, here (click).

And in case you were wondering – the grey grid with the black dots is called Ninio’s extinction illusion. It is a variation on the Hermann grid –  an optical illusion reported by German physiologist and speech scientist Ludimar Hermann in 1870. Ninio’s extinction illusion was created by J Ninio and KA Stevens in 2000 as part of a study on variations of the Germann grid.

Videos credit: AsapSCIENCE