Thursday, January 8, 2009

duck or rabbit?

Pretty much everyone has seen this famous illusion at some point...



Simon Cunningham takes it to a new level making a photographic version. awesome.



As fun as these illusions are though, they tell us important information about the way the brain processes visual information. They show the ability of the brain to maintain multistable perceptions. In this example there are two mutually exclusive images to be seen. The duck and the rabbit. You cannot see both the duck and the rabbit simultaneously, instead your brain shifts back and forth between the two perceptions. Other examples of ambiguous figures like this include (most famously) the Necker Cube and old-lady/young-woman illusion (not sure of proper name).



If you wanted to apply this idea to typography, this is the same phenomena that allows the middle character to be read as both '13' and 'B'...



This technique is sometimes used in logotypes. I need to look for some examples...

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